msem-instigator

Defender
Whenever another creature deals damage to Temperate Gazebo, you gain 3 life.

Concord — Temple Attendant gets +1/+1 and has indestructible as long as there are four or more card types among permanents you control.

Flying, lifelink

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
When Temple Instructor enters the battlefield, return target creature to its owner's hand.

Temple Recluse gets +1/+0 as long as you've cast a noncreature spell this turn.

{T}: Add {C}.
{2}, {T}: Add two mana in any combination of colors.

Scry 3. If you control a Wizard, draw a card.

Temporary Armory enters the battlefield with four +1/+1 counters on it.
Whenever Temporary Armory becomes equipped to a creature, move a +1/+1 counter from Temporary Armory to that creature.
Equipped creature has first strike.
Equip {2}

Discard a card: Tender Warden gets +2/+2 until end of turn. Activate only during your turn.

Create a 1/1 white Bird creature token with flying, then invigorate 1. (Choose a creature with the least power among creatures you control and put a +1/+1 counter on it.)

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.

(Choose only one work as a sorcery to add its ability.)
When The Art of War enters the battlefield, if a source you control would deal damage this turn, it deals double that damage instead.
{2}{R}{R}: Laying Plans
Whenever you attack for the first time each turn, untap each creature you control. After this phase, there is an additional combat phase.
{2}{R}{R}: Waging War
Whenever a creature you control attacks, create a token that's a copy of it that's tapped and attacking, except the token isn't legendary. Exile those tokens at end of combat.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Exile target creature an opponent controls until The Banishment of Seh'a leaves the battlefield.
II — Exile up to three cards from target opponent's graveyard.
III — You gain life equal to the number of cards in exile.

Until end of turn, target creature you control gains “{T}: Destroy target creature.”

Enchant creature
Enchanted creature has base power and toughness 1/1, and its activated abilities can't be activated.

{T}, Sacrifice X lands: Search your library for a nonland card with mana value X, cast it without paying its mana cost, then shuffle.

Target player discards two cards.
Ferocious — That player discards two cards at random instead if you control a creature with power 4 or greater.

Whenever The Ever-Pestilent deals combat damage to a player, that player discards a card at random.

Whenever The First Idol attacks, create an Idol token. (It's an artifact with “{1}, Sacrifice this artifact: Put a +1/+1 counter on target creature. Activate only as a sorcery.”)
Sacrifice three Idols: Return The First Idol from your graveyard your hand.

Look at the top sixteen cards of your library. Put any number of creature cards with different mana values from among them onto the battlefield and the rest on the bottom of your library in any order.

Golden age (If you cast an instant or sorcery spell, activated a nonmana ability, and attacked this turn, enter a renaissance for this game.)
If you're in a renaissance, you may have up to one target creature or planeswalker gain indestructible until end of turn.
Destroy all creatures and planeswalkers.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
If a red source you control would deal damage, it deals that much damage plus 1 instead.
I, II — Exile the top card of your library. If it's red or a Mountain, you may play that card this turn.
III — Return target red instant or sorcery card from your graveyard to your hand.

{T}: Add {C}.
{2}, {T}: Prevent all combat damage target creature would deal this turn.

Counter target spell unless its controller pays {3}. That spell's controller mills three cards.

The Mythical Zhiwu enters the battlefield with four +1/+1 counters on it.
{1}, Remove a +1/+1 counter from a creature you control: Target creature gets -1/-1 until end of turn. Activate only as a sorcery.
{1}, Remove a +1/+1 counter from a creature you control: Each opponent loses 1 life and you gain 1 life.