Crow Storm

Create a 1/2 blue Bird creature token with flying named Storm Crow.
Storm (When you cast this spell, copy it for each spell cast before it this turn.)

Omniscience

You may cast spells from your hand without paying their mana costs.

Storm Crow

Flying (This creature can't be blocked except by creatures with flying or reach.)

Divination

Show and Tell

Each player may put an artifact, creature, enchantment, or land card from their hand onto the battlefield.

Island

Mind's Desire

Shuffle your library. Then exile the top card of your library. Until end of turn, you may play that card without paying its mana cost.
Storm (When you cast this spell, copy it for each spell cast before it this turn.)

Chemister's Insight

Draw two cards.
Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.)

Attunement

Return Attunement to its owner's hand: Draw three cards, then discard four cards.

Opportunity

Mystical Tutor

Search your library for an instant or sorcery card, reveal it, then shuffle and put that card on top.