Nevermaker

Evoke is the mechanism that turns a fragile flier into a one-shot tempo spell, and the tuck is the payload it delivers. Cast for the full , the 2/3 sticks around and threatens to put a nonland permanent on top of its owner's library every time it dies, gets blinked, or returns to hand; cast for evoke, you pay the same four mana to skip the body entirely, since evoke sacrifices the creature the moment it enters and that sacrifice is what fires the tuck. Either way it stays a sorcery-speed play: evoke is an alternative cost, not a grant of flash, so it does not buy you an end-step answer or a combat-step blowout. What it buys is efficiency. Putting a permanent on top of a library is weaker than exile for permanence, but it eats the opponent's next draw to replay whatever you sent away, which against a planeswalker, a key creature, or a problem enchantment can cash out as a full lost turn. Marrying a death-and-departure trigger to evoke is the conceit that defines this whole Elemental cycle: the creature exists to deliver its own departure, and evoke collapses the cast-and-kill sequence into one card. Blink and flicker effects read that same departure differently, reusing the tuck on demand, which is where the full-cost flier earns its keep over the one-shot.