Obsianus Golem

Forest

Aspect of Wolf

Enchant creature
Enchanted creature gets +X/+Y, where X is half the number of Forests you control, rounded down, and Y is half the number of Forests you control, rounded up.

Mountain

Dwarven Demolition Team

Granite Gargoyle

Flying
{R}: Granite Gargoyle gets +0/+1 until end of turn.

Hurloon Minotaur

Regeneration

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)
{G}: Regenerate enchanted creature. (The next time that creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Giant Growth

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

Llanowar Elves

Disintegrate

Disintegrate deals X damage to any target. If it's a creature, it can't be regenerated this turn, and if it would die this turn, exile it instead.

Scryb Sprites

Craw Wurm

Giant Spider

Reach (This creature can block creatures with flying.)

Juggernaut

This creature attacks each combat if able.
This creature can't be blocked by Walls.

Wall of Stone

Shanodin Dryads

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)

Goblin Balloon Brigade

{R}: Goblin Balloon Brigade gains flying until end of turn.

Rock Hydra

Rock Hydra enters with X +1/+1 counters on it.
For each 1 damage that would be dealt to Rock Hydra, if it has a +1/+1 counter on it, remove a +1/+1 counter from it and prevent that 1 damage.
{R}: Prevent the next 1 damage that would be dealt to Rock Hydra this turn.
{R}{R}{R}: Put a +1/+1 counter on Rock Hydra. Activate only during your upkeep.

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.

Fungusaur

Whenever Fungusaur is dealt damage, put a +1/+1 counter on it.

Rod of Ruin

{3}, {T}: Rod of Ruin deals 1 damage to any target.

Tropical Island

Channel

Until end of turn, any time you could activate a mana ability, you may pay 1 life. If you do, add {C}.