msem-instigator

Flying
When Hallowed Perspective enters, investigate. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)
You may exert Hallowed Perspective as it attacks. When you do, until your next turn, you may cast spells as though they had flash. (An exerted creature won't untap during your next untap step.)

You may exert Heavenly Bull as it attacks. When you do, it gains indestructible until end of turn. (An exerted creature won't untap during your next untap step.)
{3}{G}{W}: Destroy all nonland permanents with mana value 3 or less. Activate only if Heavenly Bull is attacking and only once.

{B}{R}, {T}, Sacrifice Heretical Soulshifter: Return target creature card from your graveyard to the battlefield. It gains haste until end of turn. Activate only as a sorcery.

Whenever Heroic Exemplar attacks, if its power is greater than its base power, other creatures you control get +1/+1 until end of turn.

Enchant creature
Enchanted creature gets +2/+2 as long as it's a Human. Otherwise, it can't attack or block.

{2}{R}, {T}, Exert Hinterland Ritualist, Sacrifice another creature: Hinterland Ritualist deals damage equal to the sacrificed creature's power to any target. Activate only as a sorcery. (An exerted creature won't untap during your next untap step.)

You have no maximum hand size.
Whenever a player casts a spell, put a +1/+1 counter on Humar.
At the beginning of your upkeep, target player draws cards equal to Humar's power.

Voracious 2 (As this enters, you may sacrifice up to two artifacts and/or creatures. This creature enters with that many +1/+1 counters on it.)
When Hunted Wolf enters, create a 2/2 black Soldier creature token.

When Hunting Ground enters, create four 1/1 green Saproling creature tokens.
Whenever a creature you control dies, creatures you control get +1/+1 until end of turn.

Whenever you cast a spell, you may cast a spell from your hand with lesser mana value without paying its mana cost.
You can't cast more than one spell of each card type each turn.

Ward—Pay 3 life.
Igniderm enters with three ignition counters on it.
At the beginning of your upkeep, remove an ignition counter from Igniderm. If you can't, sacrifice it.

At the beginning of combat on your turn, gain control of another target permanent until end of turn. Untap that permanent. It gains haste until end of turn.
Fleeting {2}{R}{R} (You may cast this spell for its fleeting cost. If you do, sacrifice it at the beginning of the next end step.)

Enchant creature
When Impassioned Craze enters, draw a card.
Enchanted creature has “{R}: This creature gets +1/+0 until end of turn.”

When Inquisitive Pod enters, draw a card.
Whenever you cast your second spell each turn, Inquisitive Pod gets +3/+3 until end of turn.

Whenever Insatiable Student attacks, you may sacrifice an artifact. When you do, tap target creature an opponent controls.

Creatures you control have haste.
Whenever you attack, put a charge counter on Intensifying Luminescence.
At the beginning of your first main phase, add {R} for each charge counter on Intensifying Luminescence.

Put a +1/+1 counter on each creature you control. Until end of turn, creatures you control gain vigilance and “When this creature dies, create a 1/1 white Human creature token.”

When Irreverent Sinscape enters, destroy up to one other target nonland permanent.
When Irreverent Sinscape dies, exile it. When you do, you may exile any number of cards from your graveyard that have four or more card types among them. If you do, return a permanent card from a graveyard to the battlefield under your control. You may repeat this process any number of times.

Whenever one or more other creatures you control die, put a +1/+1 counter on Keeper of Tradition.

Whenever a creature an opponent controls dies, that player loses 1 life.
At the beginning of your end step, if an opponent lost 3 or more life this turn, create a 1/1 white Human creature token.
Fleeting {B} (You may cast this spell for its fleeting cost. If you do, sacrifice it at the beginning of the next end step.)

Fleeting {2}{U} (You may cast this spell for its fleeting cost. If you do, sacrifice it at the beginning of the next end step.)
[+1]: Any number of other target nonland permanents lose all abilities until your next turn.
[0]: You may tap an untapped creature you control. If you do, draw two cards.
[–2]: Create a token that's a copy of target creature, except it loses all abilities until end of turn.

At the beginning of your end step, you may sacrifice a creature. When you do, return another target creature card with mana value 2 or less from your graveyard to the battlefield with a finality counter on it. (If a creature with a finality counter on it would die, exile it instead.)

Long-Lived Prowler gets +3/+0 as long as there are four or more card types among cards in your graveyard.

Target creature gets +2/+2 until end of turn. Untap it.