Anhelo, the Painter (ncc) 100 #r5624
Etrata, Deadly Fugitive (mkm) 359 #r11417 #NEW
Etrata, the Silencer (grn) 170 #r6242
Kelsien, the Plague (c20) 11 #r7875
Kiku, Night's Flower (chk) 121 #r10730
Mari, the Killing Quill (ncc) 89 #r3319
Massacre Girl (war) 99 #r1528
Massacre Girl, Known Killer (mkm) 94 #r5960 #NEW
Olivia, Opulent Outlaw (otc) 2 #r12886 #NEW
Queen Marchesa (cn2) 78 #r2869
Ramses Overdark (leg) 252 #r21330
Ramses, Assassin Lord (dmc) 39 #r8572
Thraximundar (arb) 113 #r8915
Virtus the Veiled (bbd) 7 #r6514
Vraska, the Silencer (otj) 299 #r14514 #NEW
Xira, the Golden Sting (dmc) 70 #r10527
Mistform Ultimus (lgn) 47 #r16698 (changeling)
Moritte of the Frost (khm) 328 #r4015 (changeling)
Morophon, the Boundless (mh1) 1 #r1667 (changeling)
Abyssal Hunter (mir) 103 #r18944
Agent of the Fates (ths) 76 #r10705
Aven Heartstabber (snc) 166 #r9668
Big Game Hunter (plc) 63 #r2873
Blood Operative (grn) 63 #r15239
Briarblade Adept (cmr) 111 #r16449
Callidus Assassin (40k) 109★ #r5430
Cruel Sadist (m15) 93 #r13125
Dark Impostor (avr) 92 #r5766
Darkblade Agent (grn) 164 #r19599
Deadeye Duelist (otj) 119 #r21450 #NEW
Eyeblight Assassin (ori) 95 #r17327
Final-Sting Faerie (mor) 63 #r18250
Fleshtaker (mid) 222 #r6083
Garza's Assassin (csp) 57 #r16834
Gixian Skullflayer (bro) 100 #r14286
Goblin Assassin (lgn) 95 #r9186
Guildsworn Prowler (clb) 130 #r8367
Guul Draz Assassin (proe) 112★ #r8482
Hagra Sharpshooter (bfz) 113 #r24439
Hired Blade (m19) 100 #r20861
Hired Poisoner (grn) 72 #r9681
Hooded Assassin (frf) 73 #r15857
Hunter of Eyeblights (lrw) 119 #r16243
King's Assassin (por) 98 #r17270
Kraul Stinger (war) 165 #r13358
Kraul Whipcracker (mkm) 425 #r17252 #NEW
Lurking Deadeye (iko) 94 #r16221
Lys Alana Scarblade (lrw) 122 #r8958
Mer-Ek Nightblade (ktk) 79 #r9523
Merfolk Assassin (drk) 32 #r24756
Midnight Assassin (snc) 87 #r9961
Mogg Assassin (exo) 88 #r8202
Murderous Redcap (shm) 192 #r4906
Nekrataal (vis) 66 #r8319
Nightshade Assassin (tsp) 121 #r8375
Nirkana Assassin (bfz) 118 #r19834
Notorious Assassin (mmq) 150 #r18090
Ochran Assassin (grn) 194 #r10308
Orzhov Euthanist (gpt) 54 #r19993
Pyrotechnic Performer (mkm) 407 #r13296 #NEW
Raffine's Silencer (snc) 90 #r14061
Rathi Assassin (nem) 67 #r18195
Ravenloft Adventurer (clb) 142 #r3922
Repeat Offender (mkm) 101 #r22754 #NEW
Rooftop Assassin (otj) 103 #r20725 #NEW
Royal Assassin (lea) 123 #r2839
Ruthless Lawbringer (otj) 372 #r14986 #NEW
Ruthless Ripper (ktk) 88 #r9940
Scarblade Elite (mor) 77 #r12214
Serpent Assassin (por) 108 #r22120
Silent Assassin (mmq) 160 #r18217
Silumgar Assassin (dtk) 121 #r6929
Skulking Killer (vow) 296 #r19761
Stalking Assassin (inv) 277 #r19253
Stingblade Assassin (woe) 109 #r12867
Stronghold Assassin (sth) 71 #r8651
Suq'Ata Assassin (vis) 69 #r13784
Termination Facilitator (j22) 28 #r7730
Thorn of the Black Rose (cn2) 48 #r6279
Thrill-Kill Assassin (rtr) 81 #r12438
Tsabo's Assassin (inv) 128 #r18719
Twinblade Assassins (m21) 226 #r10187
Undercity Eliminator (mkm) 108 #r19239 #NEW
Unliving Psychopath (dis) 56 #r21843
Unscrupulous Contractor (otj) 112 #r19777 #NEW
Vein Ripper (mkm) 433 #r6618 #NEW
Vraska's Finisher (war) 112 #r17036
Weed-Pruner Poplar (mor) 83 #r20465
Wei Assassins (ptk) 86 #r22807
Xathrid Slyblade (m15) 124 #r17523
Zombie Assassin (ody) 168 #r25088
Amoeboid Changeling (lrw) 51 #r4036 (changeling)
Amorphous Axe (mh1) 219 #r11060 (changeling)
Arachnoform (khm) 159 #r12403 (changeling)
Avian Changeling (lrw) 4 #r7577 (changeling)
Blades of Velis Vel (lrw) 152 #r9448 (changeling)
Bloodline Pretender (khm) 235 #r1323 (changeling)
Cairn Wanderer (lrw) 105 #r8301 (changeling)
Chameleon Colossus (mor) 116 #r3540 (changeling)
Changeling Berserker (lrw) 160 #r9528 (changeling)
Changeling Hero (lrw) 9 #r11715 (changeling)
Changeling Outcast (mh1) 82 #r602 (changeling)
Changeling Sentinel (mor) 6 #r14549 (changeling)
Changeling Titan (lrw) 200 #r10191 (changeling)
Crib Swap (lrw) 11 #r2113 (changeling)
Ego Erasure (lrw) 59 #r19321 (changeling)
Fire-Belly Changeling (lrw) 164 #r9121 (changeling)
Game-Trail Changeling (mor) 123 #r11129 (changeling)
Ghostly Changeling (lrw) 116 #r12225 (changeling)
Gladewalker Ritualist (khm) 392 #r14925 (changeling)
Graveshifter (mh1) 94 #r2872 (changeling)
Guardian Gladewalker (khm) 174 #r5474 (changeling)
Impostor of the Sixth Pride (mh1) 14 #r6377 (changeling)
Irregular Cohort (mh1) 15 #r3238 (changeling)
Littjara Glade-Warden (khm) 182 #r12595 (changeling)
Littjara Kinseekers (khm) 66 #r11650 (changeling)
Masked Vandal (khm) 184 #r1233 (changeling)
Maskwood Nexus (khm) 240 #r518 (changeling)
Mirror Entity (lrw) 31 #r650 (changeling)
Mistform Dreamer (ons) 93 #r24995 (changeling)
Mistform Mask (ons) 94 #r18779 (changeling)
Mistform Mutant (ons) 95 #r16876 (changeling)
Mistform Seaswift (lgn) 45 #r25635 (changeling)
Mistform Shrieker (ons) 96 #r26236 (changeling)
Mistform Skyreaver (ons) 97 #r26323 (changeling)
Mistform Sliver (lgn) 46 #r19783 (changeling)
Mistform Stalker (ons) 98 #r25302 (changeling)
Mistform Wakecaster (lgn) 48 #r24065 (changeling)
Mistform Wall (ons) 99 #r23919 (changeling)
Mistform Warchief (scg) 43 #r13652 (changeling)
Mistwalker (khm) 68 #r9369 (changeling)
Moonglove Changeling (mor) 67 #r11538 (changeling)
Mothdust Changeling (mor) 42 #r3103 (changeling)
Nameless Inversion (lrw) 128 #r9148 (changeling)
Realmwalker (khm) 399 #r487 (changeling)
Runed Stalactite (lrw) 260 #r11377 (changeling)
Shapesharer (lrw) 85 #r7260 (changeling)
Shields of Velis Vel (lrw) 39 #r7368 (changeling)
Skeletal Changeling (lrw) 140 #r7640 (changeling)
Taurean Mauler (mor) 109 #r931 (changeling)
Turtleshell Changeling (lrw) 94 #r15254 (changeling)
Universal Automaton (mh1) 235 #r1449 (changeling)
Unsettled Mariner (mh1) 216 #r3350 (changeling)
Valiant Changeling (mh1) 34 #r7362 (changeling)
Venomous Changeling (mh1) 114 #r7756 (changeling)
War-Spike Changeling (mor) 112 #r14289 (changeling)
Webweaver Changeling (mh1) 192 #r10376 (changeling)
Wings of Velis Vel (lrw) 97 #r11886 (changeling)
Woodland Changeling (lrw) 242 #r7021 (changeling)
Coerced to Kill (mkm) 311 #r17374 #NEW
Kaya, Ghost Assassin (cn2) 75 #r9536
Vraska the Unseen (rtr) 208 #r4451
Vraska, Swarm's Eminence (war) 236 #r9242
Adaptive Automaton (m12) 201 #r1499
An-Zerrin Ruins (hml) 64 #r20854
Arcane Adaptation (xln) 46 #r2630
Ashes of the Fallen (sok) 152 #r15062
Belbe's Portal (nem) 127 #r7122
Brass Herald (apc) 133 #r9315
Caller of the Hunt (mmq) 233 #r17207
Cavern of Souls (avr) 226 #r133
Circle of Solace (ons) 13 #r24652
Conspiracy (mmq) 127 #r6810
Cover of Darkness (ons) 133 #r3825
Doom Cannon (ons) 307 #r22545
Door of Destinies (pmor) 143★ #r884
Elvish Soultiller (lgn) 124 #r16518
Engineered Plague (ulg) 51 #r16176
Etchings of the Chosen (mh1) 198 #r2165
From the Rubble (lcc) 72 #r8948
Herald's Horn (c17) 53 #r139
Icon of Ancestry (m20) 229 #r1508
Instruments of War (j22) 50 #r9800
Kindred Boon (c17) 5 #r6179
Kindred Discovery (c17) 11 #r353
Metallic Mimic (aer) 164 #r1121
Mirror of the Forebears (c17) 54 #r6856
Molten Echoes (c20) 54 #r1608
Obelisk of Urd (m15) 222 #r2259
Pillar of Origins (xln) 241 #r3841
Plague Engineer (mh1) 100 #r11310
Progenitor's Icon (lcc) 68 #r6659
Radiant Destiny (rix) 18 #r4486
Rally the Ranks (khm) 336 #r3095
Reflections of Littjara (khm) 73 #r516
Riders of Gavony (avr) 33 #r7333
Roaming Throne (lci) 344 #r418
Rukarumel, Biologist (cmm) 776 #r10108
Secluded Courtyard (neo) 512 #r278
Shared Triumph (ons) 53 #r12542
Species Specialist (c20) 47 #r2016
Steely Resolve (ons) 286 #r7224
Titan of Littjara (cmm) 760 #r4662
Unclaimed Territory (xln) 258 #r204
Urza's Incubator (uds) 142 #r525
Vanquisher's Banner (xln) 251 #r272
Xenograft (nph) 51 #r9244
Assassin (twar) 6 #r0
Assassin (tcn2) 5 #r0
Assassin (trtr) 4 #r0
Assassin's Blade (por) 80 #r19337
Assassin's Ink (neo) 87 #r10678
Assassin's Strike (rtr) 57 #r20148
Assassin's Trophy (grn) 152 #r138
Sly Spy (ust) 67d #r0
Altaïr Ibn-La'Ahad (acr) 225 #r18628 #NEW
Eivor, Battle-Ready (acr) 274 #r19510 #NEW
Ezio Auditore da Firenze (acr) 267 #r19294 #NEW
Ezio, Blade of Vengeance (acr) 275 #r18310 #NEW
Haberthrasher (unf) 76 #r24812
Hidden Blade (acr) 73 #r18234 #NEW
Paliano (moc) 62 #r0
https://tagger.scryfall.com/tags/artwork/assassin
#r= gives the edhrec rank of the card; the lower the ranking, the more decks the card is played in.