When this artifact enters, create a Blood token. (It's an artifact with "{1}, {T}, Discard a card, Sacrifice this token: Draw a card.") {3}{B}, {T}, Sacrifice this artifact: Return up to two target creature cards from your graveyard to your hand.

If you control two or more other lands, this land enters tapped. {T}: Add {R}. {3}{R}: Until end of turn, this land becomes a 3/2 red Goblin creature with "Whenever this creature attacks, create a 1/1 red Goblin creature token that's tapped and attacking." It's still a land.

As this land enters, you may reveal a Swamp or Mountain card from your hand. If you don't, this land enters tapped. {T}: Add {B} or {R}.

If you control two or more other lands, this land enters tapped. {T}: Add {B}. {3}{B}: Until end of turn, this land becomes a 3/3 black Beholder creature with menace and "Whenever this creature attacks, exile target card from defending player's graveyard." It's still a land.

({T}: Add {R}.)

({T}: Add {B} or {R}.) This land enters tapped unless you control two or more basic lands.

{T}: Add {R}. Channel — {3}{R}, Discard this card: Create two 1/1 colorless Spirit creature tokens. They gain haste until end of turn. This ability costs {1} less to activate for each legendary creature you control.

When this creature enters, create a Blood token. (It's an artifact with "{1}, {T}, Discard a card, Sacrifice this token: Draw a card.") {T}, Sacrifice this creature: Target creature gets -X/-X until end of turn, where X is twice the number of Blood tokens you control. Activate only as a sorcery.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Flying At the beginning of your end step, each opponent discards a card. {1}{B}, Sacrifice an artifact: Target creature gets -2/-2 until end of turn.

Whenever a player sacrifices a permanent, this creature deals 1 damage to any target.

As an additional cost to cast this spell, sacrifice an artifact or creature. Draw two cards and create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

Destroy target creature if it has mana value 2 or less. Revolt — Destroy that creature if it has mana value 4 or less instead if a permanent left the battlefield under your control this turn.