Creature spells can't be cast.
Pay 4 life: Destroy Aether Storm. It can't be regenerated. Any player may activate this ability.

Destroy all Islands.

Corrupt deals damage to any target equal to the number of Swamps you control. You gain life equal to the damage dealt this way.

Choose one or both —
• Destroy target artifact.
• Destroy target nonbasic land.

Equipped creature has double strike.
Whenever equipped creature attacks, you may have target creature block it this turn if able.
Equip

Graypelt Refuge enters the battlefield tapped.
When Graypelt Refuge enters the battlefield, you gain 1 life.
: Add or .

If you've been dealt damage by two or more creatures this turn, you may pay rather than pay this spell's mana cost.
Inferno Trap deals 4 damage to target creature.

Keldon Megaliths enters the battlefield tapped.
: Add .
Hellbent — , : Keldon Megaliths deals 1 damage to any target. Activate this ability only if you have no cards in hand.

At the beginning of your upkeep, sacrifice a creature. If you can't, planeswalk.
Whenever you roll {CHAOS}, any number of target players each create a 2/2 black Zombie creature token.

Llanowar Reborn enters the battlefield tapped.
: Add .
Graft 1 (This land enters the battlefield with a +1/+1 counter on it. Whenever a creature enters the battlefield, you may move a +1/+1 counter from this land onto it.)

, Discard a land card: Molten Vortex deals 2 damage to any target.

: Add .
: Target 1/1 creature gets +1/+2 until end of turn.

Converge — Prism Array enters the battlefield with a crystal counter on it for each color of mana spent to cast it.
Remove a crystal counter from Prism Array: Tap target creature.
: Scry 3. (Look at the top three cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)

, Pay 1 life, Sacrifice Scalding Tarn: Search your library for an Island or Mountain card, put it onto the battlefield, then shuffle your library.

Skyline Cascade enters the battlefield tapped.
When Skyline Cascade enters the battlefield, target creature an opponent controls doesn't untap during its controller's next untap step.
: Add .

Tempting offer — Return a creature card from your graveyard to the battlefield. Each opponent may return a creature card from their graveyard to the battlefield. For each opponent who does, return a creature card from your graveyard to the battlefield.

Target player reveals their hand and discards all Trap cards.