MTG Mono Green Aggro Deck by hexagorgonlive

{T}: Add {G}.

When this creature enters, if you control another Elf, create a 1/1 green Elf Warrior creature token.

{T}: Add one mana of any color. {T}: Target land you control becomes a 3/3 Elemental creature with haste until end of turn. It's still a land. Activate only as a sorcery.

{T}: Add one mana of any color. {T}: Add two mana of any one color. Spend this mana only to turn permanents face up.

Other Elves you control get +1/+1. Whenever you cast an Elf spell, you may pay {G}. If you do, draw a card.

Other Elves you control get +1/+1. {G}, {T}: Create a 1/1 green Elf Warrior creature token.

Other Elf creatures you control get +1/+1. {T}: Add {G} for each Elf you control.

Tap another untapped creature you control: Tyvar gains indestructible until end of turn. Tap it. {3}{G}{G}: Creatures you control get +X/+X until end of turn, where X is the greatest power among creatures you control.

Haste When this creature enters, creatures you control gain trample and get +X/+X until end of turn, where X is the number of creatures you control.

Search your library for a creature card with mana value X or less, put it onto the battlefield, then shuffle. Harmonize {X}{G}{G}{G}{G} (You may cast this card from your graveyard for its harmonize cost. You may tap a creature you control to reduce that cost by an amount of generic mana equal to its power. Then exile this spell.)

({T}: Add {G}.)

As this land enters, choose a creature type. {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.