At the beginning of each player's upkeep, that player sacrifices a nonbasic land of their choice.

At the beginning of your upkeep, sacrifice this enchantment unless you pay {2}. Whenever a creature dies, that creature's controller sacrifices a land of their choice.

Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Incandescent Aria deals 3 damage to each nontoken creature.

{T}: Add one mana of any color in your commander's color identity.

{T}: Add one mana of any color that a land an opponent controls could produce.

({T}: Add {G}.)

({T}: Add {U}.)

({T}: Add {R}.)

This land enters tapped. {T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

({T}: Add {W}.)

({T}: Add {B}.)

When you cast this spell, each player sacrifices X creatures. This creature enters with two +1/+1 counters on it for each creature sacrificed this way. Flying, trample

Lavalanche deals X damage to target player or planeswalker and each creature that player or that planeswalker's controller controls.

When Rocco enters, if you cast it, you may search your library for a creature card with mana value X or less, put it onto the battlefield, then shuffle.

Target opponent exiles the top X cards of their library. You may cast any number of spells with mana value X or less from among them without paying their mana costs.