Rampaging Hippo

Trample
Cycling {2} ({2}, Discard this card: Draw a card.)

Charge Through

Target creature gains trample until end of turn.
Draw a card.

Enchant land
When Abundant Growth enters, draw a card.
Enchanted land has "{T}: Add one mana of any color."

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Target creature you control deals damage equal to its power to target creature you don't control.

When Llanowar Visionary enters, draw a card.
{T}: Add {G}.

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

Riot (This creature enters with your choice of a +1/+1 counter or haste.)

Target creature gets +3/+3 until end of turn. It gets an additional +2/+2 until end of turn for each card named Growth Cycle in your graveyard.

{T}: Add {G}. If you control four or more creatures, add {G}{G} instead.

Target creature gets +4/+4 until end of turn.

Reach
When Arboreal Grazer enters, you may put a land card from your hand onto the battlefield tapped.