Quote from Mister MA rare that is heavily dependent on a mythic will have absolutely zero presence in Limited. But it is a solid, if narrow, Constructed card. Although it needs a "shuffle your library" clause.
Maybe something more like
Kiora's Guard GU
Creature - Merfolk Soldier
If Kiora's Guard would die or be exiled from the battlefield, you may search your library for up to three cards named Kiora's Guard, reveal them, and put them into your hand, then shuffle your library. If you do, put Kiora's Guard on the bottom of its owner's library.
Plays well with your Kiora's ultimate.