Merfolk Mesmerist

Two cards per activation, gated behind a tap and a blue mana, on a body too small to attack into anything and too fragile to block much. That math is the whole problem with mill-as-a-creature-ability: a repeatable two-card grind reads like an engine, but a deck trying to deck an opponent with this needs the Wizard to survive turn after turn while contributing nothing to the board. The slow clock invites every removal spell, and a 1/2 dies to most of them. The design slots into the long line of early commons and uncommons that handed mill to anyone willing to wait, alongside the likes of Tome Scour and the various two-mana grinders, none of which ever made the strategy fast enough to matter against decks that simply win first. What it does well is provide a recurring source of self-mill or graveyard fuel: point the ability at yourself and the same liability becomes a virtue, feeding reanimation or delve or anything that wants cards in the bin. That repurposing is the more honest use of the rate. As a kill condition it is a curiosity; as a slow, taxable cog in a graveyard deck it at least knows what it is for.