Titan of Endless Seas

Defender, Hexproof, Indestructible, Reach, Trample, Islandwalk
{5}{t}, Sacrifice a land: Tap all creatures target player controls and draw 3 cards.
Whenever you cast an instant or sorcery you may discard a card. If you do, Titan of Endless Seas gets +5/-5 and it can attack as though it didn't have defender until end of turn.