Reach, trample Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.)

Vigilance {T}: Add an amount of {G} equal to the greatest power among creatures you control. Sacrifice Bighorner Rancher: You gain life equal to the greatest toughness among other creatures you control.

As long as Centaur Omenreader is tapped, creature spells you cast cost {2} less to cast.

Vigilance Formidable — {T}: Add {C}{C}{C}. Activate only if creatures you control have total power 8 or greater.

Creatures you control have "{T}: Add {G}."

{T}: Add {G}{G}{G}. Forestcycling {2} ({2}, Discard this card: Search your library for a Forest card, reveal it, put it into your hand, then shuffle.)

Reach Creature spells you cast cost {X} less to cast, where X is the amount of life you gained this turn. {T}: You gain 2 life.

Treefolk you control have vigilance. Whenever one or more Treefolk you control attack, add twice that much {G}. You don't lose unspent green mana as steps and phases end.

{T}: Add {G}{G}.

All Slivers have "{T}: Add one mana of any color."

{T}: Add {G}.

{T}: Add {G}{G}.

{T}: Add an amount of {G} equal to your devotion to green. (Each {G} in the mana costs of permanents you control counts toward your devotion to green.)

{T}: Add {C}{C}.

Creature spells you cast with mana value 6 or greater cost {2} less to cast.

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

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.)

Sliver creatures you control have "{T}: Add one mana of any color."

{T}: Add {C}{G}.

{T}: Add one mana of any color. {T}, Exert Oasis Ritualist: Add two mana of any one color. (An exerted creature won't untap during your next untap step.)

Defender {T}: Add {G} for each creature you control with defender.

Reach {T}: Add one mana of any color. {2}: Poison Dart Frog gains deathtouch until end of turn.

Trample When Regal Behemoth enters the battlefield, you become the monarch. Whenever you tap a land for mana while you're the monarch, add an additional one mana of any color.

When Rishkar, Peema Renegade enters the battlefield, put a +1/+1 counter on each of up to two target creatures. Each creature you control with a counter on it has "{T}: Add {G}."

{T}: Add {G}. {1}, {T}: Add one mana of any color.

{T}: Reveal any number of creature cards with power 5 or greater from your hand. Add {G} for each card revealed this way.

Other Snake creatures you control get +0/+1. Shamans you control have "{T}: Add {G}{G}."

Whenever a creature you control deals combat damage to a player, add that much {G}. Until end of turn, you don't lose this mana as steps and phases end.

{T}: Add {G}.

If you would planeswalk, instead look at the top two cards of your planar deck, put one on the bottom of your planar deck and the other on top, then planeswalk. {T}: Add {G}. Doctor's companion (You can have two commanders if the other is the Doctor.)

Flash Cascade Reach When Sweet-Gum Recluse enters the battlefield, put three +1/+1 counters on each of any number of target creatures that entered the battlefield this turn.

Affinity for Forests (This spell costs {1} less to cast for each Forest you control.)

At the beginning of your end step, if a face-down creature entered the battlefield under your control this turn, put a +1/+1 counter on Tunnel Tipster. {T}: Add {G}.

Vigilance When Undermountain Adventurer enters the battlefield, you take the initiative. {T}: Add {G}{G}. If you've completed a dungeon, add six {G} instead.

Defender (This creature can't attack.) {T}: Add {G}.