When Reflector Mage enters, return target creature an opponent controls to its owner's hand. That creature's owner can't cast spells with the same name as that creature until your next turn.
You may look at the top card of your library any time.You may play lands from the top of your library.Coven — As long as you control three or more creatures with different powers, you may cast creature spells from the top of your library.
FlyingCumulative upkeep—Gain control of a land you don't control. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)Herald of Leshrac gets +1/+1 for each land you control but don't own.When Herald of Leshrac leaves the battlefield, each player gains control...
: Add . Cabal Pit deals 1 damage to you.Threshold — , , Sacrifice Cabal Pit: Target creature gets -2/-2 until end of turn. Activate only if seven or more cards are in your graveyard.
When Whirlpool Warrior enters, shuffle the cards from your hand into your library, then draw that many cards., Sacrifice Whirlpool Warrior: Each player shuffles the cards from their hand into their library, then draws that many cards.
Whenever you win a coin flip, put a luck counter on Chance Encounter.At the beginning of your upkeep, if Chance Encounter has ten or more luck counters on it, you win the game.
: Add ., Sacrifice Ghost Quarter: Destroy target land. Its controller may search their library for a basic land card, put it onto the battlefield, then shuffle.
Amplify 3 (As this creature enters, put three +1/+1 counters on it for each Dragon card you reveal in your hand.)Flying: Kilnmouth Dragon deals damage equal to the number of +1/+1 counters on it to any target.