Amaranthine Wall [Dominaria] 50a (Your next pick is from

(Your next pick is from that booster pack

It's so infinite that its flavor text says

For each card knocked off that library

Set: Core Set 2019 Type: Creature — Centaur Warrior Rarity: Common Cost: {2}{G} "The centaurs are truly free

Set: Dominaria Remastered Type: Creature — Nightmare Drake Rarity: Common Cost: {2}{U} Flying

Amaranthine Wall [Dominaria] 50a (Your next pick is fromSet: Dominaria Type: Artifact Creature Wall Rarity: Uncommon Cost: {4} Defender {2}: Amaranthine Wall gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.) Neither its appearance nor its temperature varies as the years pass, an eternal testament to the forces that shaped Dominaria.