Cortraevas: Perpetuality: Mechanics

Bound: As this card enters the battlefield, you may exile a nonland card from your graveyard underneath it. Used on 11 cards: Wood-King Ghost, Hateful Wandering, Covetous Wandering, Generous Wandering, Empty Ghost, Longing Haunt, Spellbound Ghost, Hategeist, Wailing Haunt, Lifeforce Memory Keeper, Ghost-Grasp Wandering

The Wandering (spirits) who did not have their souls converted into directives are nostalgic and tied to certain things that they knew when they were alive.

Repurpose: As you cast this spell, you may remove any number of +1/+1 counters from creatures you control. Used on 13 cards: Suppression Spell-Blanketeer, Scrapmaw, López' Gatekeeper, Ward F19 Velociteer, Communal Help, Hateful Exterminator, Viralblade Marauder, Aegis Operative, Swarm-Squad Captain, Steel Renegade, Blockscape Caretaker, Burning Blockbreaker, Predictive Strifebot

idk tbh

Weld: When this creature would die you may pay {2}

. If you do, put this creature on the bottom of your library and put a +1/+1 counter on target creature you control. Used on 10 cards: Cortraevas Citizen, Burst-Stride Soldier, Salvager Slug, Arms Distributor, Guardian Programming, Decoy Droid, Steelclaw Grizzly, Reprocessor Golem, Shockblast Lieutenant, Garden Caretaker

Just here to fill spayyce

In card text or details pages, write the mechanic's code name (playtest name) between square brackets, like "[Crittercast]", "[Bushido 1]" or "[Delay 4 {2}{R}{R}]". It will be expanded to the mechanic's name plus reminder text, such as "Suspend 4 – {2} {r} {r} . (Rather than cast this spell from your hand,...)"
To expand a mechanic's name but not its reminder text, include parentheses at the end of the square brackets: "[Crittercast()]", "[Delay 9 {R}()]".