Arcane Sanctum enters the battlefield tapped.
: Add , , or .

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)
: Add .
, : Draw a card. Activate this ability only if you have the city's blessing.

When Archaeomancer enters the battlefield, return target instant or sorcery card from your graveyard to your hand.

Flying, vigilance

Creatures you control have flying.
Creatures your opponents control lose flying and can't have or gain flying.

Enchant creature
Enchanted creature gets +2/+2 and has trample.
Whenever enchanted creature deals damage, you gain that much life.

When Armament Corps enters the battlefield, distribute two +1/+1 counters among one or two target creatures you control.

, , Sacrifice Armillary Sphere: Search your library for up to two basic land cards, reveal them, put them into your hand, then shuffle your library.

Enchant creature
Enchanted creature can't attack or block, and its activated abilities can't be activated.

Target creature gets +2/+2 until end of turn.
Addendum — If you cast this spell during your main phase, that creature gains flying until end of turn.

Arrow Storm deals 4 damage to any target.
Raid — If you attacked this turn, instead Arrow Storm deals 5 damage to that permanent or player and the damage can't be prevented.

Target creature gets +2/+2 until end of turn.
Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

Flying
Whenever you cast a historic spell, scry 1. (Artifacts, legendaries, and Sagas are historic. To scry 1, look at the top card of your library, then you may put that card on the bottom of your library.)

When you cast this spell, you may return target creature card from your graveyard to the battlefield.
Annihilator 2 (Whenever this creature attacks, defending player sacrifices two permanents.)

Creatures you control have hexproof. (They can't be the targets of spells or abilities your opponents control.)
: Regenerate target creature.

: Add .
Basic landcycling (, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle your library.)

Sacrifice a creature: Add .

At the beginning of your upkeep, put a muster counter on Assemble the Legion. Then create a 1/1 red and white Soldier creature token with haste for each muster counter on Assemble the Legion.

Megamorph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)
When Atarka Efreet is turned face up, it deals 1 damage to any target.

Indestructible
As long as your devotion to white and black is less than seven, Athreos isn't a creature.
Whenever another creature you own dies, return it to your hand unless target opponent pays 3 life.