msem-instigator

Untap all creatures and lands you control during each other player's untap step.
Ascend {4}{R}{R}{R} ({4}{R}{R}{R}: Exile this creature, then return it to the battlefield transformed. Ascend only as a sorcery.)

Flying, ward {1}
Intisuyu's Masterpiece gets +X/+X, where X is the number of artifacts and/or enchantments you control.

Level experience, vigilance, trample
Prevent all but the first 1 damage that would be dealt to Verdigris Behemoth each turn. [5/5]
[level 3+] Whenever Verdigris Behemoth deals combat damage to a player, you may destroy target artifact or enchantment that player controls. [7/7]

At the beginning of combat on each of your turns, you may have target land you control become a 3/3 Elemental creature with haste until end of turn. It's still a land.
Sacrifice Seeds of New Life: Return up to two target land cards from your graveyard to your hand. Activate only as a sorcery.

Destroy target land. Create a 1/1 red Goblin creature token.

Gruff Clutch enters with six +1/+1 counters on it.
{R}, Remove a +1/+1 counter from Gruff Clutch: It deals 1 damage to any target.

Flash
Enchant creature
Enchanted creature gets +3/+3.

At the beginning of each upkeep, choose another permanent with the greatest mana value among permanents. Its controller sacrifices it.

Enchant player
At the beginning of enchanted player's upkeep, their life total becomes 10.

Flash
Defender
When Majestic Garrison enters, another target creature you control gains indestructible until end of turn.

Enchant opponent
Whenever enchanted player draws a card or casts a spell, put a foreshadow counter on Thalassophobia.
Remove eight foreshadow counters from Thalassophobia and sacrifice it: Create an 8/8 blue Kraken creature token.

Whenever you cast a spell for its showcase cost, create a 2/2 blue Drake creature token with flying.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I, II — You may create a token that's a copy of target Aura you control. Attach it to target permanent you control.
III — Put a +1/+1 counter on each enchanted creature you control. Those creatures gain indestructible and vigilance until end of turn.

Flying
Concord — When Archangel of Accord enters, if there are four or more card types among permanents you control, destroy all other creatures.

When Giku Weaponsmith enters, create two colorless Equipment artifact tokens with “Equipped creature gets +1/+1” and equip {1}.

Flying
Inspired — Whenever Kaleidoscale Drake becomes untapped, scry 1.

Wu Xing (Add effects based on the number of colors of mana spent to cast this spell.)
1 | Return to the battlefield up to X target nonland permanent cards from your graveyard that were put there from the battlefield this turn.
5 | If a permanent entering the battlefield causes an ability of a permanent you control to trigger this turn, that ability triggers an additional time.

Return up to one target creature you control and up to one target creature you don't control to their owners' hands.

If one or more +1/+1 counters or quest counters would be put on a permanent you control, that many plus one of those counters are put on it instead.

Whenever another creature with power 2 or less you control enters for the first time each turn, you may pay {W}. If you do, draw a card.

Each land you sacrifice while casting Frostfire Hulk pays for {1}.
Frostfire Hulk enters with a +1/+1 counter for each land card in your graveyard.
Sacrifice Frostfire Hulk: It deals X damage to target creature or planeswalker, where X is the number of +1/+1 counters that were on it. Activate only as a sorcery.

Trample
World Tender's power and toughness are each equal to twice the number of differently named lands you control.

{T}: Add {C}.
Harmony — Add one mana of any color.
{1}, {T}: Harmonize. (Trigger up to one harmony of one permanent you control.)

Deception {2}{U}{U} ({2}{U}{U}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)
Whenever Raloran Insurgent deals combat damage to a player, abound. (You may cast a spell that costs less than this from your hand without paying its mana cost.)

When Powercell Cultivator enters, create a tapped colorless Powercell artifact token with “{T}: Add {C}.”
Artifacts you control have “{T}: Add one mana of any color.”