Awesome Cyber Monday

Wintermoon Mesa enters the battlefield tapped. {T}: Add {C}. {2}, {T}, Sacrifice Wintermoon Mesa: Tap two target lands.

{T}: Choose a color. Add one mana of that color unless any player pays {1}. Activate this ability only any time you could cast an instant.

At the beginning of your end step, if you control no untapped lands, you gain 2 life.

At the beginning of your end step, if you control no untapped lands, draw a card.

Flash Enchant creature Enchanted creature gets +1/+2.

Trample Keldon Battlewagon can't block. When Keldon Battlewagon attacks, sacrifice it at end of combat. Tap an untapped creature you control: Keldo...

Hollow Warrior can't attack or block unless you tap an untapped creature you control not declared as an attacking or blocking creature this combat....

Flying {T}, Sacrifice X lands: Put X +1/+1 counters on Copper-Leaf Angel.

Wing Storm deals damage to each player equal to twice the number of creatures with flying that player controls.

Target creature gets +1/+1 until end of turn. That creature gets an additional +4/+4 until end of turn unless any player pays {2}.

Creatures you control get +7/+7 until end of turn.

Vintara Snapper has shroud as long as you control no untapped lands. (It can't be the target of spells or abilities.)

Trample {3}: Vintara Elephant loses trample until end of turn. Any player may activate this ability.

Enchant land Enchanted land has "{T}: Target creature gets +1/+1 until end of turn."

{2}{W}{W}, {T}, Discard two cards: Destroy all creatures except for Mageta the Lion. Those creatures can't be regenerated.

Put a +1/+1 counter on each of X target creatures.

Whenever Thresher Beast becomes blocked, defending player sacrifices a land.

{1}{G}, Sacrifice a land: Create two 1/1 green Squirrel creature tokens. {1}{G}, Sacrifice a land: Squirrel creatures get +1/+1 until end of turn.

Sacrifice Spore Frog: Prevent all combat damage that would be dealt this turn.

Reach (This creature can block creatures with flying.) Sacrifice a land: Spitting Spider deals 1 damage to each creature with flying.

You may discard a Forest card rather than pay this spell's mana cost. Prevent all combat damage that would be dealt by unblocked creatures this turn.

When Silt Crawler enters the battlefield, tap all lands you control.

Mercenaries don't untap during their controllers' untap steps.

Reach (This creature can block creatures with flying.)