Aeon Chronicler's power and toughness are each equal to the number of cards in your hand.
Suspend X—. X can't be 0. (Rather than cast this card from your hand, you may pay and exile it with X time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost. It has haste.)
Whenever a time counter is removed from Aeon Chronicler while it's exiled, draw a card.

Aeon Engine enters the battlefield tapped.
, Exile Aeon Engine: Reverse the game's turn order. (For example, if play had proceeded clockwise around the table, it now goes counterclockwise.)

Destroy target tapped creature. You gain 1 life for each creature you control with flying.

Flying
: Exile the top card of your library. Until end of turn, you may play that card. (Reveal the card as you exile it.)

As long as you control an artifact, Aerial Engineer gets +2/+0 and has flying.

Strive — This spell costs more to cast for each target beyond the first.
Any number of target creatures each get +1/+1 and gain flying until end of turn.

Flying
Whenever Aerial Guide attacks, another target attacking creature gains flying until end of turn.

Target creature gets +1/+1 and gains flying and first strike until end of turn.

Enchant creature or Vehicle
As long as enchanted permanent is a Vehicle, it's a creature in addition to its other types.
Enchanted creature gets +2/+2 and has flying.

Flying, vigilance, lifelink

Flying
, Sacrifice another artifact: Aerial Toastmaster assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)

Inspired — Whenever Aerie Worshippers becomes untapped, you may pay . If you do, create a 2/2 blue Bird enchantment creature token with flying.

Flying
Vehicles you control have flying.

Aeronaut Tinkerer has flying as long as you control an artifact. (It can't be blocked except by creatures with flying or reach.)

Flying
Aesthir Glider can't block.

When Aether Adept enters the battlefield, return target creature to its owner's hand.

Whenever a player casts a creature spell, that player sacrifices a permanent unless they pay .

Return up to X target creatures to their owners' hands, where X is one plus the number of cards named Aether Burst in all graveyards as you cast this spell.

Kicker (You may pay an additional as you cast this spell.)
Aether Figment can't be blocked.
If Aether Figment was kicked, it enters the battlefield with two +1/+1 counters on it.

Return six target nonland permanents to their owners' hands.