Yharon, Resplendent Phoenix

Flying, haste
When Yharon enters and at the beginning of your upkeep, exile the top half of your library rounded
up, you may put a land from among cards exiled this way onto the battlefield. For each nonland card type you may cast a spell of that type from among
the exiled cards until end of turn.

Whenever you cast a spell from exile, Yharon deals
2 damage to each opponent and you gain 2 life.