msem-instigator

Converge — Exile up to X nonland permanents you control, where X is the number of colors of mana spent to cast Reenter Orbit, then return them to the battlefield under your control.

Counter target spell.
{1}{U}, Exile Refute from your graveyard: Draw a card.

Each player sacrifices three lands. Regal Ignition deals 3 damage to each nonlegendary creature.

This spell costs {1} less to cast for each artifact you control.
Search your library for an artifact creature card with mana value X or less, put it onto the battlefield, then shuffle.

Return target instant or sorcery card from your graveyard to your hand.
Leitmotif (If you cast this spell from your hand, exile it as it resolves. When you next cast a spell that shares a color with this card, you may cast this from exile without paying its mana cost.)

Flying, lifelink, haste
{W}{U}{B}{R}{G}, Exile Remi Amber, Slyten Specialist: Return Remi Amber to the battlefield transformed at the beginning of your next main phase.

[+1]: Create a 1/1 blue Elemental creature token with flying, then crystallize twice. (Put a +1/+1 counter on a creature you control or create a Treasure.)
[–3]: Exile target nonland permanent. As long as it's exiled, its owner may pay {W}{U}{B}{R}{G} as a sorcery to put it into their hand.
[–7]: You get an emblem with “Pay 1 life: Add one mana of any color.” Then you gain 100 life.

Trample
When Remnant of the Wild enters, if you cast it, untap all lands you control.

Choose four nonland card names. Target opponent reveals their hand and discards all cards with the chosen names.

{T}, Sacrifice Renewal Grove: Search your library for a basic land card, put it onto the battlefield, then shuffle. If Renewal Grove entered since your last upkeep, that land doesn't untap during your next untap step.

When Repurposed Custodian enters, shuffle any number of target cards from graveyards into their owner's libraries.

Sacrifice Repurposed Killdrone: It deals 1 damage to any target. You gain 1 life.

Return target nonland permanent to its owner's hand. Then you may pay {U}{U}. If you do, copy Resonating Force and you may choose new targets for the copy.

When Rethia Cultivator enters, you may search your library for a land card, reveal it, put it into your hand, then shuffle.

At the beginning of your upkeep, if a library has twenty or fewer cards left in it, return Returned Explorer from your graveyard to the battlefield tapped.

Ward {2}
When Rewriter of Flesh enters, target creature you control becomes an enchantment and loses all other card types. (It still has its abilities, but it's no longer a creature.)

Whenever you cast a storied spell, you may pay {1}. If you do, draw a card. (Enchantments and legendary spells are storied.)
Sacrifice Right to Rule: Storied permanents you control gain indestructible until end of turn.

Rilken Forcefield Keeper gets +1/+1 for each enchantment you control.
Sacrifice Rilken Forcefield Keeper: Exile target permanent you control. Return that card to the battlefield under your control at the beginning of the next end step.

Whenever another creature you control enters, put a +1/+1 counter on it.
Whenever Rilken Preserver attacks, you may exile target nonland permanent you control, then return it to the battlefield under your control.

Cadence (Whenever you cast a spell, if its mana value is greater than this creature's power, put a +1/+1 counter on this creature.)
Whenever Robot Herder deals combat damage to a player, create a 1/1 colorless Servo artifact creature token.

Destroy all nonland permanents with mana value 3 or less.

Trample
Players can't activate abilities of nonbasic, noncreature permanents.

You have hexproof.
Creatures you don't control have base power and toughness 1/1 and lose all abilities.
Nonbasic lands you don't control don't untap during their controller's untap step.

{T}: Add {C}.
{4}, {T}: Look at the top two cards of your library. You may put one of them into your graveyard. Put the rest back on top in any order. If you control eight or more lands, draw a card.

S-19 Long Jacket has first strike as long as it's attacking.
S-19 Long Jacket has lifelink as long as it's blocking.