Colossus of Sardia

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
This creature doesn't untap during your untap step.
{9}: Untap this creature. Activate only during your upkeep.

Fissure

Destroy target creature or land. It can't be regenerated.

Winter Blast

Tap X target creatures. Winter Blast deals 2 damage to each of those creatures with flying.

Giant Growth

Target creature gets +3/+3 until end of turn.

Grizzly Bears

Elvish Archers

Mountain

Keldon Warlord

Keldon Warlord's power and toughness are each equal to the number of non-Wall creatures you control.

Shivan Dragon

Flying
{R}: This creature gets +1/+0 until end of turn.

Force of Nature

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
At the beginning of your upkeep, this creature deals 8 damage to you unless you pay {G}{G}{G}{G}.

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Fireball

This spell costs {1} more to cast for each target beyond the first.
Fireball deals X damage divided evenly, rounded down, among any number of targets.

War Mammoth

Llanowar Elves

Fire Elemental

Killer Bees

Flying
{G}: This creature gets +1/+1 until end of turn.

Cockatrice

Flying
Whenever this creature blocks or becomes blocked by a non-Wall creature, destroy that creature at end of combat.