Child of Bolas

+20: Search your deck for 5 spell cards and 5 mana you may play all the mana/spells or just the mana or some of them or the spells or some of them.
-X: X=60 then take 10 cards (mana, spells, creatures) from your opponents. Then bring out Egg of Bolas.
-X: X=100 if there is a planeswalker (including this card) on the field it gains hexproof then destroy all cards on the battlefield deck and hand.