Izuku Midoryia, Hero Fanatic

Whenever a Legendary Creaure or Planeswalker
enters the battlefield under your control, you may
draw a card.
Whenever Izuku Midoryia, Hero Fanatic blocks,
you may pay {3}{w/u}{w/u}, if you do, search your library
for a Legendary Creature card and put it onto the battlefield blocking the attacking creature, remove
Izuku from combat, then shuffle. The creature is exiled at the beginning of the next end step.