Prevent all combat damage that would be dealt this turn.

Forest

Black Lotus

{T}, Sacrifice Black Lotus: Add three mana of any one color.

Instill Energy

Enchant creature
Enchanted creature can attack as though it had haste.
{0}: Untap enchanted creature. Activate only during your turn and only once each turn.

Hurricane

Hurricane deals X damage to each creature with flying and each player.

Giant Growth

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

Llanowar Elves

Desert Twister

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, Force of Nature deals 8 damage to you unless you pay {G}{G}{G}{G}.

Giant Spider

Reach (This creature can block creatures with flying.)

War Mammoth

Johtull Wurm

Whenever Johtull Wurm becomes blocked, it gets -2/-1 until end of turn for each creature blocking it beyond the first.