msem-instigator

Whenever a creature you control dies, Oakpoint gets +4/+0 until end of turn.

Enchant creature
Whenever you cast a green spell, enchanted creature gets +2/+2 until end of turn.

Enchant creature
Enchanted creature has hexproof.
{U}: Return Mistcharm to its owner's hand.

When Master of the Glen enters, create a 2/2 green Wolf Elemental creature token.
Elementals you control have trample.

Heretic (Whenever you cast a spell that doesn't share a color with this creature, it gets +1/+1 until end of turn.)
Whenever you cast a white, blue, black, or red spell, add one mana of any color that spell isn't.

Whenever Lightseeker Nymph perseveres, search your library for a basic land card, put it onto the battlefield tapped, then shuffle. (A creature perseveres when it survives damage.)

{3}{G}: Put a +1/+1 counter on Lifecaller Dryad.

Search your library for a creature card with mana value X or less, put it onto the battlefield, then shuffle.

For each color among nontoken permanents you control, add one mana of that color.

{1}{U}, {T}: Reveal the top card of your library. If it doesn't share a color with Heretical Seer, put it into your hand.

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

Trample
Heretic (Whenever you cast a spell that doesn't share a color with this creature, it gets +1/+1 until end of turn.)

Until end of turn, creatures you control gain “When this creature dies, return a noncreature card from your graveyard to your hand.”

Whenever you cast a blue spell, you may cast creature spells this turn as though they had flash.
Whenever you cast a black spell, put up to one target card from your graveyard on top of your library.

Primal {G} (During your turn, you may cast this spell for {G} instead of playing a land.)
When Charging Nymph enters, it gets +2/+0 and gains haste until end of turn.

{1}{G}: Target land you control becomes a 3/3 green Elemental creature until end of turn.
{1}{U}: Target enchantment you control becomes a 2/2 blue Nymph creature with flying until end of turn.

At the beginning of your first main phase, add an amount of {G} equal to Bloomhorn's power.

{T}: Add {G}.
{T}: Add {G}{G}. Activate only if you control an Elemental.

Trample
Whenever a creature attacks, Alpha Stag gets +2/+2 until end of turn.

Whenever Veiled Charmer attacks, target creature blocks it this turn if able.

Exile the top five cards of your library. Until end of turn, you may play any number of cards exiled this way with mana value less than or equal to the number of colors among permanents you controlled as you cast United Fervor.

Undine Coven gets +1/+1 for each other Merfolk you control.
Whenever you cast a noncreature spell, Undine Coven deals 1 damage to target player or planeswalker.

Thunder Wave deals 3 damage to target creature or planeswalker.

Haste
Heretic (Whenever you cast a spell that doesn't share a color with this creature, it gets +1/+1 until end of turn.)

Primal {1}{W}{W} (During your turn, you may cast this spell for {1}{W}{W} instead of playing a land.)
Double strike
When Sunken Slasher enters, if you didn't play a land this turn, put a +1/+1 counter on it.