Shipwreck Dowser

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

Teferi's Protege

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

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

Capture Sphere

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

Read the Tides

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

Talrand's Invocation

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

Wizard's Retort

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

Unsubstantiate

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

Island

Vodalian Arcanist

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

Winged Words

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

Sage's Row Savant

Talrand, Sky Summoner

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

Thriving Isle

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