Talrand, Sky Summoner

Whenever you cast an instant or sorcery spell, create a 2/2 blue Drake creature token with flying.

Unsubstantiate

Return target spell or creature to its owner's hand.

Sage's Row Savant

Vodalian Arcanist

{T}: Add {C}. Spend this mana only to cast an instant or sorcery spell.

Island

Wizard's Retort

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

Read the Tides

Choose one —
• Draw three cards.
• Return up to two target creatures to their owners' hands.

Thriving Isle

Thriving Isle enters tapped. As it enters, choose a color other than blue.
{T}: Add {U} or one mana of the chosen color.

Teferi's Protege

{1}{U}, {T}: Draw a card, then discard a card.

Capture Sphere

Flash (You may cast this spell any time you could cast an instant.)
Enchant creature
When Capture Sphere enters, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.

Talrand's Invocation

Create two 2/2 blue Drake creature tokens with flying.

Winged Words

This spell costs {1} less to cast if you control a creature with flying.
Draw two cards.

Shipwreck Dowser

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
When Shipwreck Dowser enters, return target instant or sorcery card from your graveyard to your hand.