mtg.wtf

At the beginning of your upkeep, change Halfdane's base power and toughness to the power and toughness of target creature other than Halfdane until the end of your next upkeep.

At the beginning of each player's upkeep, that player chooses a color. Until end of turn, lands tapped for mana produce mana of the chosen color instead of any other color.

Cumulative upkeep {1}
Creatures that attacked during their controller's last turn can't attack.

{T}, Tap three untapped white creatures you control: Destroy target creature.

At the beginning of your upkeep, put a -1/-1 counter on each creature.

As an additional cost to cast this spell, pay X life.
Target creature gets +X/+0 until end of turn.

Whenever an artifact becomes tapped or a player activates an artifact's ability without {T} in its activation cost, Haunting Wind deals 1 damage to that artifact's controller.

{X}, {T}: The next X damage that would be dealt this turn to target white creature you control is dealt to Hazduhr the Abbot instead.

When Hazezon Tamar enters the battlefield, create X 1/1 Sand Warrior creature tokens that are red, green, and white at the beginning of your next upkeep, where X is the number of lands you control at that time.
When Hazezon leaves the battlefield, exile all Sand Warriors.

First strike
{T}: Target Dwarf creature gets +2/+0 and gains first strike until end of turn. When that creature leaves the battlefield this turn, sacrifice Heart Wolf. Activate only during combat.

Cumulative upkeep {2}
When a player doesn't pay Heart of Bogardan's cumulative upkeep, Heart of Bogardan deals X damage to target player or planeswalker and each creature that player or that planeswalker's controller controls, where X is twice the number of age counters on Heart of Bogardan minus 2.

If Heart of Yavimaya would enter the battlefield, sacrifice a Forest instead. If you do, put Heart of Yavimaya onto the battlefield. If you don't, put it into its owner's graveyard.
{T}: Add {G}.
{T}: Target creature gets +1/+1 until end of turn.

At end of combat, destroy each creature that blocked or was blocked this turn.

Destroy all nonblack creatures. Hellfire deals X plus 3 damage to you, where X is the number of creatures that died this way.

{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.

Flying, vigilance
Echo {2}{W}{W}

Green creatures have forestwalk.

You may choose not to untap Hivis of the Scale during your untap step.
{T}: Gain control of target Dragon for as long as you control Hivis and Hivis remains tapped.

{U}: Tap target green creature.

Enchant land you control
Enchanted land has "{T}: Prevent the next 1 damage that would be dealt to any target this turn."

All creatures lose all abilities and have base power and toughness 1/1.

{1}{W}: Target Soldier creature gets +1/+0 until end of turn.

First strike; banding
Whenever Icatian Skirmishers attacks, all creatures banded with it gain first strike until end of turn.

{X}, {T}: You may exile a nonland card from your hand. You may cast that card for as long as it remains exiled. Put a charge counter on Ice Cauldron and note the type and amount of mana spent to pay this activation cost. Activate only if there are no charge counters on Ice Cauldron.
{T}, Remove a charge counter from Ice Cauldron: Add Ice Cauldron's last noted type and amount of mana. Spend this mana only to cast the last card exiled with Ice Cauldron.

Flying
{G}: Ifh-Bíff Efreet deals 1 damage to each creature with flying and each player. Any player may activate this ability.