Ixalan

Dive Down | Instant | | Target creature you control gets +0/+3 and gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.) | Magali Villeneuve

Opt | Instant | | Scry 1. Draw a card. | Craig J Spearing

Shore Keeper | Creature | Trilobite | {7}{U}, {T}, Sacrifice Shore Keeper: Draw three cards. | YW Tang

Siren Stormtamer | Creature | Siren Pirate Wizard | Flying {U}, Sacrifice Siren Stormtamer: Counter target spell or ability that targets you or a creature you control. | Josu Hernaiz

Spell Pierce | Instant | | Counter target noncreature spell unless its controller pays {2}. | Deruchenko Alexander