Spell Queller 1 W U
Creature - Spirit
When Spell Queller enters the battlefield, exile target spell with converted mana cost 4 or less.
When Spell Queller leaves the battlefield, the exiled card's owner may cast that card without paying its mana cost.
Really interesting creature (I believe that any flash creature has some merit). Most of the time it's an overpriced limited counterspell, but it can sometimes protect our own spells from fow or flusterstorm. When Queller leaves play the opponent can cast the spell, but maybe then it's too late for them.
Spellstutter sprite has a similar effect, and thought it saw play some years ago, now it sees 0 play in vintage or legacy. However sprite effectively counters cc0 and cc1, while this card can ~~counter ~~exile cc2 and cc3. The cost is higher too.
This it's only a 2/3, so it's not something terribly aggro, but every 2 damage counts (trinket mage has won too many matches). In a creature deck this can effectively be a time walk, while adding more damage next turn.
With the abundance of StPS and lightning bolt right now I think this is the wrong meta for this creature. You cast this against any white deck as a counter they just stp it and recast their spell. Against red, its a bolt to kill it.
Though I do see its has flying. A 2/3 flying body in a u/w moat shell is nothing to sneeze at. Add potential utility, even if it is questionable quality due to the meta. I could see this guy seeing some play. But if he was released this time last year or even very early this year I think he have been stronger.