Riddlekeeper [Commander Anthology Volume II] Planechase Anthology Planes and you end up a

and you end up a sibsig

then that player shuffles their hand into their library

at the beginning of each of your upkeeps for the rest of the game

Set: Champions of Kamigawa Type: Sorcery Rarity: Rare Cost: {G} Whenever you cast a creature spell this turn

Spend this mana only to cast Dragon spells

Riddlekeeper [Commander Anthology Volume II] Planechase Anthology Planes and you end up aSet: Commander Anthology Volume II Type: Creature Homunculus Rarity: Rare Cost: {2}{U} Whenever a creature attacks you or a planeswalker you control, that creature's controller mills two cards. Fools surrender their sanity to his riddles. Even greater fools try to solve them.