Awesome Cyber Monday

At the beginning of each player's end step, Citadel of Pain deals X damage to that player, where X is the number of untapped lands they control.

Whenever an opponent casts a spell, you may draw a card unless that player pays {1}.

Enchant land Enchanted land has "{T}: This land deals 1 damage to each creature and each player."

Whenever a player puts a nontoken creature onto the battlefield, that player returns a land they control to its owner's hand.

All combat damage that would be dealt to you this turn by target unblocked creature is dealt to its controller instead.

{0}: Tap all lands you control. Chimeric Idol becomes a 3/3 Turtle artifact creature until end of turn.

Destroy all enchantments you don't control. Then if you control an untapped land, destroy all enchantments you control.

You may discard a Plains card rather than pay this spell's mana cost. Destroy target artifact or enchantment.

Rhystic Lightning deals 4 damage to any target unless that permanent's controller or that player pays {2}. If they do, Rhystic Lightning deals 2 da...

Up to three target creatures can't block this turn.

Whenever Lesser Gargadon attacks or blocks, sacrifice a land.

Flash Enchant creature Whenever enchanted creature deals combat damage to defending player, you may destroy target artifact that player controls.

{X}{R}, {T}, Discard two cards: Latulla, Keldon Overseer deals X damage to any target.

When Keldon Firebombers enters the battlefield, each player sacrifices all lands they control except for three.

Whenever Keldon Berserker attacks, if you control no untapped lands, it gets +3/+0 until end of turn.

{1}, Sacrifice two lands: Destroy target land.

Inflame deals 2 damage to each creature dealt damage this turn.

You may discard a Mountain card rather than pay this spell's mana cost. Flameshot deals 3 damage divided as you choose among one, two, or three ta...

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

Whenever Fickle Efreet attacks or blocks, flip a coin at end of combat. If you lose the flip, an opponent gains control of Fickle Efreet.

Sacrifice a land: Fault Riders gets +2/+0 and gains first strike until end of turn. Activate only once each turn.

Destroy target land. Devastate deals 1 damage to each creature and each player.

At the beginning of each player's end step, Citadel of Pain deals X damage to that player, where X is the number of untapped lands they control.

Activated abilities of nontoken Rebels cost an additional "Sacrifice a land" to activate.