Target player loses 4 life and you gain 4 life.
Basic landcycling (, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle your library.)

Flying
: Creatures you control gain shroud until end of turn. (They can't be the targets of spells or abilities.)

: Add one mana of any color. Spend this mana only to cast a creature spell.

Apocalypse Hydra enters the battlefield with X +1/+1 counters on it. If X is 5 or more, it enters the battlefield with an additional X +1/+1 counters on it.
, Remove a +1/+1 counter from Apocalypse Hydra: It deals 1 damage to any target.

, , Sacrifice Armillary Sphere: Search your library for up to two basic land cards, reveal them, put them into your hand, then shuffle your library.

Enchant creature
Enchanted creature has flying, first strike, and vigilance.

Flying
Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

Flying
Domain — Aven Trailblazer's toughness is equal to the number of basic land types among lands you control.

Banefire deals X damage to any target.
If X is 5 or more, this spell can't be countered and the damage can't be prevented.

: Target creature with power 5 or greater gains vigilance until end of turn.

Flying, trample
At the beginning of your upkeep, each player loses 1 life. Put a +1/+1 counter on Blood Tyrant for each 1 life lost this way.
Whenever a player loses the game, put five +1/+1 counters on Blood Tyrant.

At the beginning of your upkeep, if you control a black permanent, you may put a +1/+1 counter on Bloodhall Ooze.
At the beginning of your upkeep, if you control a green permanent, you may put a +1/+1 counter on Bloodhall Ooze.

Equipped creature gets +1/+0.
Equip (: Attach to target creature you control. Equip only as a sorcery.)

When Brackwater Elemental attacks or blocks, sacrifice it at the beginning of the next end step.
Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Exile target black or red permanent.

Trample
Whenever Charnelhoard Wurm deals damage to an opponent, you may return target card from your graveyard to your hand.

Trample
When Child of Alara dies, destroy all nonland permanents. They can't be regenerated.

Cliffrunner Behemoth has haste as long as you control a red permanent.
Cliffrunner Behemoth has lifelink as long as you control a white permanent.

Search your library for a white card, a blue card, a black card, a red card, and a green card. Reveal those cards and put them into your hand. Then shuffle your library.