msem-instigator

Each other Okus planeswalker you control enters the battlefield with two additional loyalty counters on it.
[–2]: Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I, II — Audition for red. (Create a 1/1 Construct Actor creature token, a Warrior Role giving 3/2 and trample, or a Wizard Role giving 2/2 and prowess. Roles replace older ones.)
III — Whenever a creature you control deals damage to an opponent this turn, exile the top card of your library. You may play it this turn.
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As an additional cost to cast this spell, discard two cards.
Put the bottom three cards of your library into your hand.

Destroy target nonbasic land.
Abound. (To abound, you may cast a spell that costs less than this from your hand without paying its mana cost.)

This spell costs {2} more to cast for each target beyond the first.
Choose one or more —
• Anax's Endeavor deals 2 damage to any target.
• Destroy target nonbasic land. Its controller may search their library for a basic land card, put it onto the battlefield tapped, then shuffle.
• Destroy target artifact. Scry 1.

Haste
Frenzy 3 (Whenever this creature attacks and isn't blocked, it gets +3/+0 until end of turn.)
Whenever Anaz, Bloodmother attacks, create a 2/1 red Lizard creature token with frenzy 2 that's tapped and attacking.

Equipped creature gets +1/+3.
{0}: Until end of turn, Ancestor's Bulwark becomes a 1/3 Spirit artifact creature with flying. Activate this ability only if it isn't attached.
Equip {3}

When Ancestor's Skull enters the battlefield, target creature gets +1/+0 and gains menace until end of turn.
{2}, Sacrifice Ancestor's Skull: Target creature gets +2/+0 and gains menace until end of turn.

({T}: Add {G}.)
As Ancestral Glade enters the battlefield, you may pay 1 life. If you don't, Ancestral Glade enters the battlefield tapped.
Basic lands you control have “{T}: Add {G}.”

{T}: Add one mana of any color.
{4}, {T}, Sacrifice Ancestral Tapestry: Search your library for a legendary card, reveal it, put it into your hand, then shuffle.

Flash
When Ancestral Warlord enters the battlefield, it deals 1 damage to each blocking creature.

Equipped creature gets +1/+1.
Equip {1}

{3}, {T}: Ancient Artillery deals 1 damage to target creature or planeswalker and 1 damage to that permanent's controller.

Ancient Cairns enters the battlefield tapped.
As Ancient Cairns enters the battlefield, choose a color other than red.
{T}: Add {R} or one mana of the chosen color.

Whenever Ancient Durumderm attacks, you may return another creature you control to its owner's hand. If you do, create a Treasure token. (It's an artifact with “{T}, Sacrifice this artifact: Add one mana of any color.”)

Target creature you control gets +3/+3 until end of turn. Then if that creature has power 10 or greater, each other creature you control gets +3/+3 until end of turn.

Prevent all combat damage that Ancient Guardian would deal to or be dealt by creatures with no counters on them.

Puzzlebox (Begin the game with this and another card you own from outside the game in the command zone, locked. That card is face down until you unlock this.)
{6}: Unlock Ancient Maze. If the revealed card is green, put it into your hand. Otherwise, put it on top of your library.

{T}: Add {C}.
{3}, Discard Ancient Ossuary: Search your library for a land card, reveal it, put it into your hand, then shuffle.

Trample
When Ancient Pillan enters the battlefield, it fights up to one target creature an opponent controls.

Equipped creature has “Whenever this creature attacks or blocks, choose a creature card in your graveyard. This creature gets +X/+Y until end of turn, where X is that card's power and Y is its toughness.”
Equip {2}

When Ancient Tablet enters the battlefield, scry 2.
{2}, Sacrifice Ancient Tablet: You may shuffle any number of target cards from your graveyard into your library. Draw a card.

Ward {3}