{U}: Quicksilver Elemental gains all activated abilities of target creature until end of turn. You may spend blue mana as though it were mana of any color to pay the activation costs of Quicksilver Elemental's abilities.
Return target creature to its owner's hand. You may search your library and/or graveyard for a card named Ral, Caller of Storms, reveal it, and put it into your hand. If you search your library this way, shuffle.
At the beginning of your upkeep, you may put a verse counter on Recantation. {U}, Sacrifice Recantation: Return up to X target permanents to their owners' hands, where X is the number of verse counters on Recantation.
Return up to two target creatures to their owner's hand. Search your library and/or graveyard for a card named Mu Yanling, reveal it, and put it into your hand. If you searched your library this way, shuffle.
You may play cards as though they were other cards of your choice with the same mana cost. You can't choose the same card twice. (Mana cost includes color.)
{2}{U}{U}, Sacrifice Riptide Shapeshifter: Choose a creature type. Reveal cards from the top of your library until you reveal a creature card of that type. Put that card onto the battlefield and shuffle the rest into your library.
Whenever River Kelpie or another permanent enters the battlefield from a graveyard, draw a card. Whenever a player casts a spell from a graveyard, draw a card. Persist
When Saprazzan Bailiff enters the battlefield, exile all artifact and enchantment cards from all graveyards. When Saprazzan Bailiff leaves the battlefield, return all artifact and enchantment cards from all graveyards to their owners' hands.
Sealock Monster can't attack unless defending player controls an Island. {5}{U}{U}: Monstrosity 3. When Sealock Monster becomes monstrous, target land becomes an Island in addition to its other types.
Artifacts you control are Clues in addition to their other types and have "{2}, Sacrifice this artifact: Draw a card." Whenever you sacrifice a Clue, target creature can't be blocked this turn.
When Shield Broker enters the battlefield, put a shield counter on target noncommander creature you don't control. You gain control of that creature for as long as it has a shield counter on it.