When you set this scheme in motion, until your next turn, whenever a player taps a land for mana, that player adds one mana of any type that land produced.
"What would you say is my greatest attribute? Is it my gluttonous lust for power?"
When you set this scheme in motion, reveal the top two cards of your library and put them into your hand. When you reveal one or more nonland cards this way, this scheme deals damage equal to their total mana value to any target.
When you set this scheme in motion, look at the top six cards of your library. You may put a creature card from among them onto the battlefield. Put the rest on the bottom of your library in any order.
When you set this scheme in motion, add {U}{B}{R}. When you set this scheme in motion, if you control six or more lands, you may search your library for a card with mana value 6 or greater, reveal it, put it into your hand, then shuffle.
As you set this scheme in motion, choose an opponent. Creatures the chosen player controls can't attack you or planeswalkers you control. At the beginning of your opponents' end step, they may tap any number of untapped creatures they control with total power 8 or greater. If they do, abandon this scheme.
When you set this scheme in motion, for each opponent, exile target permanent that player controls. Then each player reveals cards from the top of their library until they reveal a permanent card, puts it onto the battlefield, and puts the rest on the bottom of their library in a random order.
When you set this scheme in motion, target opponent chooses a player. Until your next turn, only you and the chosen player can cast spells and attack with creatures.
"I am nothing if not fair. I've chosen my champion. Now you must choose yours."
When you set this scheme in motion, look at the top four cards of your library and separate them into a face-down pile and a face-up pile. An opponent chooses one of those piles. Put the cards in that pile into your hand and the rest on the bottom of your library in any order.
"There is no way out—only a choice of final agonies."
When you set this scheme in motion, each opponent reveals cards from the top of their library until they reveal a creature card. Choose one of the revealed creature cards and put it onto the battlefield under your control. Put all other cards revealed this way into their owners' graveyards.
Whenever you attack, create a 5/5 black Demon creature token with flying that's tapped and attacking. At the beginning of each end step, if two or more creatures died under your control this turn, abandon this scheme.
When you set this scheme in motion, create a 3/3 black Horror creature token and prevent all damage that would be dealt to creatures you control this turn.
"Pain is a delusion of the weak. I'll demonstrate."
When you set this scheme in motion, after this main phase, there is an additional combat phase followed by an additional main phase. Creatures you control gain vigilance until end of turn.
"Are they dead yet? No? Then my previous order stands."
When you set this scheme in motion, each player shuffles their hand and graveyard into their library. You draw seven cards, then each other player draws four cards.
"My vision is for the good of everyone. Mostly me."
When you set this scheme in motion, each opponent reveals their hand. Choose a nonland card from each of those hands. Those players discard those cards.
When you set this scheme in motion, you may pay {X}. If you do, put each nonland permanent target player controls with mana value X or less on the bottom of its owner's library.
When you set this scheme in motion, create seven 0/1 green Plant creature tokens. If you control ten or more lands, create seven 3/3 green Elemental creature tokens instead.
When you set this scheme in motion, target opponent chooses self or others. If that player chooses self, the player sacrifices two creatures. If the player chooses others, each of your other opponents sacrifices a creature.
"Even you have a purpose. Your blood will oil the gears."