Homarid Explorer
The body and the trigger are stapled together at a rate that asks you to want both halves. A 3/3 for four is unremarkable blue beef, a blocker that trades and holds the ground; the four-card mill on entry is the kind of incidental graveyard pressure that ranges from irrelevant to lethal depending entirely on who you point it at and what they care about. That dual identity is the whole pitch. Aimed at yourself, it stocks a graveyard you intend to use. Aimed across the table, it chips at a deck thin enough to feel it, or feeds a strategy that wants the opponent's cards in a yard rather than a library. The Homarids were the crustacean tribe of an early underwater set, and the flavor of slow tidal erosion fits the function: this is not a finisher, it is a body that does a small disruptive thing once and then blocks. Mill as a one-shot enters-the-battlefield rider was a common shape in the era this comes from, where the keyword was a chip-damage idea rather than a dedicated win condition, and a 3/3 attached to it gives the effect a floor it would not have on a spell. Whether the four cards matter at all is the question every game asks of it, and the answer changes more than the card itself does.
