msem-instigator

Flash
When Predatory Psion enters, switch target creature's power and toughness until end of turn.

Lionize {2}{R} ({2}{R}, Exile this card from your hand: Put a +1/+1 counter on target creature and it gains the following abilities until end of turn. You may cast this card on a later turn from exile.)
Double strike

This spell costs {1} less to cast for each other card in your hand.
If you have fewer than seven cards in hand, draw cards equal to the difference.

When Auramancer enters, you may return target enchantment card from your graveyard to your hand.

Return up to two target creature cards from your graveyard to your hand. If you control a creature with power greater than its base power, you gain 3 life.

Create a 1/1 white Bird creature token with flying. (Then exile this card. You may cast the creature later from exile.)

Cast this spell only if you have 10 or less life.
Flying, trample

Merciless Champion can't block unless you control another Knight or Soldier.

When Empire's Glory enters, draw a card, then choose a card name.
Whenever a creature with the chosen name you control enters, put a +1/+1 counter on each creature you control that shares a creature type with it. Those creatures gain haste until end of turn.

When Last-Thought Feeder dies, fateseal 2. (To fateseal 2, look at the top two cards of an opponent's library, then put any number of them on the bottom of that player's library and the rest on top in any order.)

Inferno Lash deals 2 damage to target creature or planeswalker. When it does, torment that permanent's controller. (They lose 3 life unless they discard a card or sacrifice a nonland permanent.)

You may have Mutalithic Golem enter as a copy of any land on the battlefield, except it's an artifact in addition to its other types.

At the beginning of your end step, return target creature card with mana value X or less from your graveyard to the battlefield with a finality counter on it, where X is the greatest number of creatures you control that share a creature type.

Equipped creature gets +2/+2.
Equip {3}

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Create a 0/4 white Wall creature token with defender.
II — Put a +1/+1 counter on up to one target creature.
III — Until your next turn, each creature you control assigns combat damage equal to its toughness rather than its power.

When Flame Juggler dies, it deals 3 damage to each opponent.

Flash
Blind Blackguard can't block.
When Blind Blackguard enters, target player draws a card, then reveals their hand. You choose a nonland card from that player's hand, then that player puts the chosen card on the bottom of their library.

Whenever Field Chaplain perseveres, you gain 3 life. (A creature perseveres when it survives damage.)

Target nonland permanent phases out. (Treat it and anything attached to it as though they don't exist until its controller's next turn.)
Draw a card.

Whenever a creature you control becomes blocked, you may return it to its owner's hand.
The first spell you cast during your postcombat main phase each turn costs {W}{U} less to cast. This effect reduces only the amount of colored mana you pay. (For example, if you cast a spell with mana cost {1}{U}, it costs {1} to cast.)

Deathtouch
{3}{G}: Deathcoil Cobra gains indestructible until end of turn.

Flying
Once each turn, when an opponent draws a card while they have more cards in hand than you, you may draw a card.

[+1]: You may play an additional land this turn.
[–1]: Discard a card. If you do, return target creature, land or sorcery card from your graveyard to your hand.
[–5]: Create Thrice-Folded Lotus, a colorless Masterpiece artifact token with “{T}: Add three mana of any one color.” and “{3}, {T}: This artifact deals 3 damage to any target.”

Voliv Edgelands enters tapped.
When Voliv Edgelands enters, sacrifice it unless you pay {1}.
Voliv Edgelands has all activated abilities of other lands.

Exile target creature. Return that card to the battlefield under its owner's control at the beginning of the next end step.