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.

Indestructible

Whenever Creepy Doll deals combat damage to a creature, flip a coin. If you win the flip, destroy that creature.

{4}, {T}: Flip a coin. If you win the flip, destroy target creature an opponent controls. If you lose the flip, destroy target creature you control unless you pay {3} and repeat this process.

Choose a source you control and flip a coin. If you win the flip, the next time that source would deal damage this turn, it deals double that damage instead. If you lose the flip, the next time it would deal damage this turn, prevent that damage.

Whenever Fickle Efreet attacks or blocks, flip a coin at end of combat. If you lose the flip, an opponent gains control of Fickle Efreet.

Flip a coin until you lose a flip or choose to stop flipping. If you lose a flip, Fiery Gambit has no effect. If you win one or more flips, Fiery Gambit deals 3 damage to target creature. If you win two or more flips, Fiery Gambit deals 6 damage to each opponent. If you win three or more flips, draw nine cards and untap all lands you control.

For each blocking creature, flip a coin. If you win the flip, prevent all combat damage that would be dealt by that creature this turn.

Flying

{0}: Flip a coin. If you win the flip, Frenetic Efreet phases out. If you lose the flip, sacrifice Frenetic Efreet. (While it's phased out, it's treated as though it doesn't exist. It phases in before you untap during your next untap step.)

Flip a coin. If you win the flip, you gain 1 life and target opponent loses 1 life, and you decide whether to flip again. If you lose the flip, you lose 1 life and that opponent gains 1 life, and that player decides whether to flip again. Double the life stakes with each flip.

{T}: Flip a coin. If you win the flip, draw a card. If you lose the flip, counter target artifact spell you control that isn't the target of an ability from another creature named Goblin Artisans.

At the beginning of your upkeep, you may flip a coin. If you win the flip, put a fuse counter on Goblin Bomb. If you lose the flip, remove a fuse counter from Goblin Bomb.

Remove five fuse counters from Goblin Bomb and sacrifice it: It deals 20 damage to target player or planeswalker.

Sacrifice Goblin Lyre: Flip a coin. If you win the flip, Goblin Lyre deals damage to target opponent or planeswalker equal to the number of creatures you control. If you lose the flip, Goblin Lyre deals damage to you equal to the number of creatures that opponent or that planeswalker's controller controls.

Whenever Goblin Psychopath attacks or blocks, flip a coin. If you lose the flip, the next time it would deal combat damage this turn, it deals that damage to you instead.

Whenever a creature attacks, flip a coin. If you win the flip, the next time that creature would deal combat damage this turn, it deals double that damage instead. If you lose the flip, the next time that creature would deal combat damage this turn, prevent that damage.

Cumulative upkeep--Flip a coin. (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.)

Whenever you win a coin flip, Karplusan Minotaur deals 1 damage to any target.

Whenever you lose a coin flip, Karplusan Minotaur deals 1 damage to any target of an opponent's choice.

If you would flip a coin, instead flip two coins and ignore one.

At the beginning of your upkeep, flip a coin. If you lose the flip, Mana Crypt deals 3 damage to you.

{T}: Add {C}{C}.

Play with the top card of your library revealed.

You may cast instant and sorcery spells from the top of your library.

Whenever you cast an instant or sorcery spell from your library, copy it. You may choose new targets for the copy.

Whenever Mijae Djinn attacks, flip a coin. If you lose the flip, remove Mijae Djinn from combat and tap it.

Create two 1/1 red Elemental creature tokens, then flip a coin. If you win the flip, return Molten Birth to its owner's hand.

At the beginning of your upkeep, flip a coin. If you lose the flip, sacrifice Planar Chaos.

Whenever a player casts a spell, that player flips a coin. If they lose the flip, counter that spell.

Flip a coin. If you win the flip, destroy all creatures with power 2 or less. If you lose the flip, destroy all creatures with power 3 or greater.

+1: Tap target permanent, then untap another target permanent.

-2: Ral Zarek deals 3 damage to any target.

-7: Flip five coins. Take an extra turn after this one for each coin that comes up heads.

Whenever a player casts a spell that targets a single player, each player rolls a six-sided die. Change the target of that spell to the player with the lowest result. Reroll to break ties, if necessary.

At the beginning of your upkeep, flip a coin. If you lose the flip, return Scoria Wurm to its owner's hand.

Whenever Skyclaw Thrash attacks, flip a coin. If you win the flip, Skyclaw Thrash gets +1/+1 and gains flying until end of turn.

{2}, {T}: Flip a coin. If you win the flip, sacrifice Sorcerer's Strongbox and draw three cards.

Choose a number. Flip a coin that many times or until you lose a flip, whichever comes first. If you win all the flips, draw two cards for each flip.

Flip a coin. If you win the flip, take an extra turn after this one.

Roll a six-sided die. Strategy, Schmategy has the indicated effect.

1 -- Do nothing.

2 -- Destroy all artifacts.

3 -- Destroy all lands.

4 -- Strategy, Schmategy deals 3 damage to each creature and each player.

5 -- Each player discards their hand and draws seven cards.

6 -- Repeat this process two more times.

Trample

Volatile Rig attacks each combat if able.

Whenever Volatile Rig is dealt damage, flip a coin. If you lose the flip, sacrifice Volatile Rig.

When Volatile Rig dies, flip a coin. If you lose the flip, it deals 4 damage to each creature and each player.

Flip a coin. If you win the flip, Winter Sky deals 1 damage to each creature and each player. If you lose the flip, each player draws a card.

{3}, {T}: Flip a coin. If you win the flip, create a 2/2 colorless Insect artifact creature token with flying named Wirefly. If you lose the flip, destroy all permanents named Wirefly.