MTG Mono Blue Aggro Deck by Tiendav1s

Flying {7}{U}: Adapt 4. This ability costs {1} less to activate for each instant and sorcery card in your graveyard. (If this creature has no +1/+1 counters on it, put four +1/+1 counters on it.)

Flying {U}, Sacrifice this creature: Counter target spell or ability that targets you or a creature you control.

Flash (You may cast this spell any time you could cast an instant.) Flying {3}{U}: Draw a card.

Flash (You may cast this spell any time you could cast an instant.) Whenever you cast a spell during an opponent's turn, put a +1/+1 counter on this creature.

Flash When this creature enters, tap target creature an opponent controls. It loses all abilities until end of turn.

Enchant creature Enchanted creature gets +1/+1 and has "Whenever this creature deals combat damage to a player, you may draw a card." At the beginning of your end step, if you didn't attack with a creature this turn, sacrifice this Aura.

Target creature you control gets +0/+3 and gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

Scry 1. (Look at the top card of your library. You may put that card on the bottom.) Draw a card.

Counter target noncreature spell unless its controller pays {2}.

Counter target creature spell. Put a +1/+1 counter on up to one target creature you control.

This spell costs {1} less to cast if you control a Pirate. Counter target spell unless its controller pays {4}.

This spell costs {1} less to cast if you control a Wizard. Counter target spell.

Draw two cards. Then discard a card unless you attacked this turn.

This spell costs {2} less to cast if you control a creature with flying. Return target nonland permanent you don't control to its owner's hand. Draw a card.

({T}: Add {U}.)