Jodah, Archmage Eternal

+2: Add {w}{r}{g}{u}{b} to your mana pool. Use this to cast only instant and sorcery spells.
-3: Each player exiles the top card of their deck facedown. At the beginning of your upkeep play these cards without paying their mana cost.
-10: You get an emblem "Whenever an instant or sorcery is cast you play another one in your hand with the same converted mana cost for free".