Magik - the Gathering

Becoming the Sorcerer Supreme:

Look deep into the crystal ball (i.e. "Play with the top card of your deck faceup"). This ability strengthens events "To Me, My X-Men!" and Summoning Spell, as well as your allies like Legion, Kid Omega, Cyclops, and of course Professor X. Conjoined with being able to play the top card a resource discount once per phase, Magik's kit is resource rich. Thus, you want to mulligan for and play Limbo early.

For example, using the Limbo "Action" ability to swap Cyclops from your hand to the top of your deck, followed by playing "To Me, My X-Men!", you get the benefits of Cyclops "Response" on multiple turns. With Utopia in play to Ready your Hero, along a couple of allies attacking, you can output significant damage over a couple of turns.