mtg cards with enter the battlefield effects Favorite creature ETB in blue, black, and/or red Card Advantage—Two-for-Ones | MAGIC: THE

The best part about this card is its splice onto arcane cost since it lets you add it onto an arcane spell on the stack just by exiling four creatures from your graveyard

If you build more decks than you play, Archidekt is probably your tool

Or Dismember, which showcases perhaps the most sinister phrasing of until end of turn But perhaps my favorite is Grafdiggers Cage, which casts Grafdigger as some kind of director

Thought Scour puts a random card into your hand, Opt lets you choose a known card or the mystery box, Sleight of Hand is the same two-card choice with an open mystery box, and Serum Visions lets you keep both or neither of the two cards you see