Winning combos

Flying

When Aura Thief dies, you gain control of all enchantments. (You don't get to move Auras.)

Flying, vigilance, haste

Whenever Aurelia, the Warleader attacks for the first time each turn, untap all creatures you control. After this phase, there is an additional combat phase.

Until end of turn, any time you could activate a mana ability, you may pay 1 life. If you do, add {C}.

Lands you control have "{T}: Add one mana of any color."

{T}: Add one mana of any color.

{T}: Add one mana of any color.

{T}: Put a charge counter on Coalition Relic.

At the beginning of your precombat main phase, remove all charge counters from Coalition Relic. Add one mana of any color for each charge counter removed this way.

Enchant creature

Whenever enchanted creature deals damage to an opponent, you may draw a card.

Search your library for a card, put that card into your hand, then shuffle.

Flying, intimidate, trample (A creature with intimidate can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Whenever a player loses the game, put thirteen +1/+1 counters on Withengar Unbound.

All permanents are enchantments in addition to their other types.

Whenever an opponent loses life, you gain that much life.

This spell costs {1} more to cast for each target beyond the first.

Fireball deals X damage divided evenly, rounded down, among any number of targets.

({T}: Add {G}.)

{T}: Add three mana of any one color.

Flying, first strike

If a source would deal damage to an opponent or a permanent an opponent controls, that source deals double that damage to that player or permanent instead.

If a source would deal damage to you or a permanent you control, prevent half that damage, rounded up.

{X}, {T}: Target opponent mills a card, then repeats this process until a creature card or X cards have been put into their graveyard this way, whichever comes first. If one or more creature cards were put into that graveyard this way, sacrifice Helm of Obedience and put one of them onto the battlefield under your control. X can't be 0.

({T}: Add {U}.)

Haste

{T}: Create a token that's a copy of target nonlegendary creature you control, except it has haste. Sacrifice it at the beginning of the next end step.

If Leyline of the Void is in your opening hand, you may begin the game with it on the battlefield.

If a card would be put into an opponent's graveyard from anywhere, exile it instead.

Whenever another creature enters the battlefield, untap Midnight Guard.

({T}: Add {R}.)

Flying

Whenever you draw a card, Niv-Mizzet, the Firemind deals 1 damage to any target.

{T}: Draw a card.

Flash

Flying

When Pestermite enters the battlefield, you may tap or untap target permanent.

As Phyrexian Processor enters the battlefield, pay any amount of life.

{4}, {T}: Create an X/X black Phyrexian Minion creature token, where X is the life paid as Phyrexian Processor entered the battlefield.

({T}: Add {W}.)

Enchant creature

Enchanted creature has "{T}: Create a 1/1 green Elf Warrior creature token."

Whenever you gain life, target opponent loses that much life.

({T}: Add {W} or {B}.)

Enchant creature

Enchanted creature has "{T}: Create a token that's a copy of this creature, except it has haste. Exile that token at the beginning of the next end step."

({T}: Add {B}.)

({T}: Add {G} or {U}.)

Whenever another creature enters the battlefield under your control, you gain life equal to that creature's toughness.

{1}{G}{W}, {T}: Populate. (Create a token that's a copy of a creature token you control.)