msem-instigator

Flying
{1}{W}: Target creature with a +1/+1 counter on it gains flying until end of turn.

Menace
Stampede — Whenever Maelstrom Slicer and a creature with greater power attack, exile the top three cards of your library. You may play those cards until end of turn.

Whenever you cycle a card, scry 1. (Do this before you draw.)
{W}{U}{B}{R}{G}, Sacrifice Maelstromancy: Return up to three target cards with cycling abilities from your graveyard to your hand.

Protection from sorceries
Whenever Magdel, Caller of Souls attacks, create a 1/1 white Spirit creature token with flying that's tapped and attacking for each storied permanent you control. Exile the tokens at end of combat. (Enchantments and legendary permanents are storied.)

Equipped creature gets +2/+1 and has flying.
Equip Wizard or Shaman {2}
Equip {4}

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
Exile up to one target creature you control. At the beginning of your next end step, return it to the battlefield.
Until end of turn, if a creature entering the battlefield causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.
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Equipped creature can't be blocked and has ward {3}.
Equip {2}

Haste
Rapport — Whenever Maghbri Hunter and at least one other creature you control become tapped, Maghbri Hunter gets +2/+1 until end of turn.

Whenever a creature dies, scry 1 and each opponent loses 1 life.

When Maghbri Whisper enters, nourish 1. (To nourish 1, either put a +1/+1 counter on this creature or create a 1/1 white Citizen creature token.)
Sacrifice a creature: Maghbri Whisper gets +2/+2 until end of turn.

Activated abilities of nonland permanents cost {2} more to activate.

Flying
At the beginning of your upkeep, if it isn't an extra turn, put a sage counter on Magistrate of Eras.
Remove five sage counters from Magistrate of Eras: Take an extra turn after this one.

Haste
When Magma Crawler enters, creatures you control with flash or haste get +1/+1 until end of turn.

Trample
When Magmatic Ravager enters, two target lands you control don't untap during your next untap step.

As Magmatic Torrent enters, you may pay 2 life. If you don't, Magmatic Torrent enters tapped.
{T}, Sacrifice Magmatic Torrent: Search your library for an Island or Mountain card, put it onto the battlefield, then shuffle.

Haste
When Magmatic Violator enters, target opponent sacrifices a creature.
At the beginning of the end step, sacrifice Magmatic Violator.

At the beginning of each combat, if you control a creature with flying, Magnific Wilderkin gets +1/+1 and gains flying until end of turn. The same is true for first strike, double strike, deathtouch, haste, hexproof, indestructible, lifelink, menace, reach, trample, and vigilance.

Magnificent Palace enters tapped.
As Magnificent Palace enters, choose two colors.
{T}: Add one mana of any of the chosen colors.

Trample
Other Beasts you control have trample.
Whenever Magnoceros attacks, create a 5/5 green Beast creature token that's tapped and attacking.

Prowess
When Magus Aspirant enters, you may search your library for an instant or sorcery card, reveal it, put it into your hand, then shuffle.

At the beginning of your upkeep, if five or more instant and/or sorcery cards are in your graveyard, return target instant or sorcery card at random from your graveyard to your hand.

If a red instant or sorcery spell you control or a red planeswalker you control would deal damage to a permanent or player, it deals that much damage plus 2 instead.

Whenever another creature you control dies, each other player sacrifices a creature.

Whenever an opponent discards a card, you may draw a card.