Merchant Scroll

Search your library for a blue instant card, reveal that card, put it into your hand, then shuffle.

High Tide

Until end of turn, whenever a player taps an Island for mana, that player adds an additional {U}.

Look at the top three cards of your library, then put them back in any order. You may shuffle.
Draw a card.

Return target nonland permanent and all other permanents with the same name as that permanent to their owners' hands.

Draw three cards, then put two cards from your hand on top of your library in any order.

Draw three cards.
Islandcycling {1} ({1}, Discard this card: Search your library for an Island card, reveal it, put it into your hand, then shuffle.)