Tamiyo Bant (Modern)

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Aggro/Tempo deck based on exalted.
You'll be attacking with just one creature most of the time using the flying evasive properties of your creatures.
Control/Tempo wise you've got:

-4 Path to Exile to remove treats that made on the field, also usable to fetch the Forest if a Bird/Hierarch gets destroyed

-3 Spell Queller to counter even more spells (even if Queller gets focused down it's still a 2x1), can also be played via Collected Company for some surprise board+spell advantage.

-3 Reflector Mage to remove eventual treats that bypassed Spell Queller, Path and Mana Leak. Can be used both offensively (removing blocking creature) or defensively (via Collected Company).

-3 Voice of Resurgence, to jam opponent removal during our turn.

-1 Scavenging Ooze, good graveyard hate or recycle for some life for a measly mana cost.

-2 Jace, Vryn's Prodigy to make some hand quality.
Once trasformed into planeswalker we can cast again Collected Company or Path to Exile.
Aggro wise, you've got:

-3 Geist of Saint Traft, once the card hits the field he starts hitting like a blacksmith.
A 2/2 hexproof that creates a 4/4 flying token who synergize well with Qasali and Noble Hierarch.
The bread and butter of the deck, can be played at turn 2 with the perfect hand (2 lands + 1 Hierarch/Birds) or via Collected Company.

-3 Qasali Pridemage, while being just a 2/2, he can still hit for 3, 4 with a Noble Hierarch.
Can be sacrificed for artifact/enchantment destruction.

-2 Vendilion Clique: a 3/1 flying with flash is always useful.
We can untap it with Minamo or use him for some hand control, both ours or enemy.

-1 Brimaz, King of Oreskos, similar to Geist, with less defenses vs spells but with a more solid body.
The Vigilance attribute is a nice addition, and the token army he can create goes hand in hand with Voice of Resurgence's token.

For the ramp, we've got:
-4 Noble Hierarch: the best turn 1 drop you can play.
During the first 1-2 turns she's gonna be under hard focus.

-2 Birds of Paradise: the underperfoming cousin of Noble Hierarch.
Can serve as an attacker with some exalted backup, or as a blocker during endgame.

-4 Collected Company: whatever you need, this card can provide it (with some luck).
Use it as a "counter" for opponent removal/creature: a well timed Spell Queller/Geist/Reflector Mage can turn the table in your favor and grant you an handful of turns.

Tamiyo is there to let you draw cards or freeze opponent's board.
She alone can keep a full board in check for ages.
The ultimate lets you basically play the deck for free.

Elspeth is mostly used for the pumping effect on your single attacking creature.
She can also create some blocking creatures in dire times.

Land wise, I opted for a majority of shockland/fastlands, since too many basic land would screw the mana base.
Celestial Colonade is a mana sinks for the lategame, when the board is enstabilished (1-2 Noble Hierarch, 1 Geist of Saint Traft, 1-2 Reflector Mage).

As for playing the deck, the first hand is extremely impactful on the turn 2-3 performance.
Mulligan if you get something lower than the average quality starting hand (examples below):

Perfect hand: 2 lands, 1-2 Noble Hierarch, 1 Geist of Saint Traft, Path to Exile, 1-2 Voice of Resurgence
Pretty good hand: 2 lands, 1-2 Noble Hierarch/Birds of Paradise, 1 Spell Queller, 1-2 Path to Exile, 1 Jace, Vryn's Prodigy, 1 Voice of Resurgence.
Good hand: 1-2 lands, 1-2 Noble Hierarch/Birds of Paradise, 1 Voice of Resurgence/Qasali Pridemage, Path to Exile
Average hand: 1-2 lands, 1-2 Qasali Pridemage, 1-2 Reflector Mage, 1-2 Path to Exile

If the starting hand is composed of 3 or more CMC 3 or higher, mulligan it.