As for competitive play, its a 5 mana 3/3, and Morphling he is not
Cut [edit] Typically performed after a previous shuffling method, the cut is of simply taking a deck, dividing it into two portions of random size, and putting the previously lower portion on top of the previously higher portion
Haste is a keyword ability that lets a creature ignore summoning sickness
3-mana 1/4s with Reach are always kind of alright, and this ones Training upside is pretty real
When using the Shift 5 ability, which allows the six-cost card to be played one turn early if a cheaper Merlin can be commandeered for the cause, Merlin gets to make use of another feature called Overdeveloped Brain
Maximizing Sin, Spiras Punishment Sin, Spiras Punishment is a massive creature with evasion that provides value whenever it enters the battlefield or attacks