Grey Knight Paragon Space Marine Devastator Space Marine Scout Thunderwolf Cavalry Triumph of Saint Katherine Ultramarines Honour Guard Vexilus Praetor Zephyrim Genestealer Locus Genestealer Patriarch Heralds of Tzeentch Lord of Change Sicarian Infiltrator Sister of Silence Vanguard Suppressor Anrakyr the Traveller Arco-Flagellant Biotransference Blight Grenade Chronomancer Cryptek Flayed One Great Unclean One Hexmark Destroyer Illuminor Szeras Lokhust Heavy Destroyer Lychguard Mandate of Abaddon Mortarion, Daemon Primarch Necron Deathmark Necron Overlord Nurgle's Conscription Nurgle's Rot Out of the Tombs Plague Drone Plasmancer Poxwalkers Primaris Eliminator Psychomancer Royal Warden Sanguinary Priest Sautekh Immortal Shard of the Nightbringer Shard of the Void Dragon Skorpekh Destroyer Skorpekh Lord Sloppity Bilepiper Tallyman of Nurgle Technomancer Their Name Is Death Their Number Is Legion Tomb Blade Trazyn the Infinite Triarch Praetorian Triarch Stalker Venomcrawler The War in Heaven Acolyte Hybrid Aspiring Champion Bloodcrusher of Khorne Bloodthirster Chaos Terminator Lord Dark Apostle Exocrine Herald of Slaanesh Keeper of Secrets Khrn the Betrayer Knight Rampager
The struggle might be trying to fit it into the existing removal rotation without leaving yourself with too many spells, or not enough copies of Sear
It gives you more selection than Sarulf's Packmate, but you'll usually take the cantrip creature at a lower cost
You could usually break it way too late in the game for it to matter
If it has a +1/+1 counter on it, draw a card
Build up a strong enough board presence, or get your opponent low enough with chip damage, and you can create a game state where your opponent can't even kill your creatures without risking death themselves
