This spell costs {2} less to cast if your devotion to blue is three or greater.
Scry 2, then draw two cards.

Creatures you control can't be blocked unless defending player pays {1} for each creature blocking it.
Creatures can't attack you unless their controller pays {1} for each creature they control that's attacking you.

The first spell you cast each turn costs {2} less to cast.
The second spell you cast each turn can't be countered.
Whenever you cast your third spell each turn, draw a card.

Counter target spell with mana value less than or equal to the number of cards in its controller's graveyard.

As an additional cost to cast this spell, sacrifice an artifact or creature.
Create a 4/4 white Angel creature token with flying.
Draw a card.

Equipped creature gets +1/+0.
Whenever equipped creature attacks, you may cast an instant or sorcery card from your hand with mana value X or less without paying its mana cost, where X is equipped creature's power.
Equip {2}

Target creature gets +1/+1 until end of turn. Put a hexproof counter on that creature.

Return target nonland permanent an opponent controls to its owner's hand. You may draw a card. If you do, discard a card.

Whenever a creature an opponent controls becomes tapped, if it isn't being declared as an attacker, you may draw a card.
{4}{U}: Tap target creature without flying.

Approval — Counter target noncreature spell unless its controller pays {X}, where X is the number of colors among permanents you control.

At the beginning of your end step, if you control three or more untapped lands, you may exile another target permanent you control, then return it to the battlefield under its owner's control.
{1}{U}{U}: Scry 1.

Enchant creature
Enchanted creature gets +1/+0 and can't be blocked.
{5}{U}, Exile Voyage to the Siren Sea from your graveyard or the battlefield: Draw three cards. This ability costs {1} less for each creature you control that dealt combat damage to an opponent this turn.

Target artifact or creature you control becomes an artifact creature with base power and toughness 5/5 until end of turn.

Target creature can't be blocked this turn. If this spell's flashback cost was paid, put a +1/+1 counter on that creature.
Flashback {1}{U}

When Wandering Hedge-Mage enters, you may return target instant or sorcery card from your graveyard to your hand. If it had mana value 4 or greater, create a Treasure token.

Prowess, prowess

Once each turn, when you cast an instant or sorcery spell, you may create a 1/0 blue Elemental creature token.
Elementals you control get +1/+1.
{2}{U}, Sacrifice an Elemental: Tap up to one target creature. Scry 1.

{T}: Target land you control becomes the basic land type of your choice until end of turn.
{2}{U}, {T}: Draw a card, then discard a card. This ability costs {2} less to activate if you control four or more lands with different names.

Creatures your opponents control get -1/-0.
Spellcharge 5

Whenever a creature entering the battlefield under your control causes an ability of a permanent you control to trigger, draw a card. This ability triggers only once each turn.

Tap up to one target creature. Creatures you don't control don't untap during their controllers' next untap step.
Flashback {4}{U}

Flying
Whenever you draw your second card each turn, tap target nonland permanent.

Whenever a non-Spirit creature you control leaves the battlefield, if it had counters on it, put those counters on A Scent to Die For.
At the beginning of your end step, if A Scent to Die For has counters on it, you may create a 0/0 black Spirit creature token and move all counters from A Scent to Die For onto it.

Flying, deathtouch

Target player reveals their hand. You choose a nonland card from it or a card from their graveyard. Exile that card. You lose 1 life.