Slither Blade

A one-mana evasive body stripped to its essentials: nothing on the card but the rule that it cannot be blocked. That austerity is the whole pitch. Unblockable creatures usually arrive with a downside attached, a steep cost, a fragile frame, or a stat line bent toward defense to compensate for guaranteed connection. This one trims away the riders and hands over a permanent that pokes through every turn, which makes it less a beater than a delivery mechanism. The 1/2 body is the tell: it is no threat on offense, but tough enough to shrug off a stray ping, and toughness is what matters when the goal is to keep something on the board that reliably touches the opponent. Anything you hang on that connection (a counter that grows it, an aura that hurts when it lands, a trigger that cares about combat damage to a player) turns the guaranteed swing into the real payload. By itself it deals one a turn, slow and almost beneath notice. Strapped to a reason to want unblockable contact, it becomes the cheapest, hardest-to-interact-with way to make that contact happen, because the evasion lives on the creature itself rather than on a removable enchantment or a one-shot spell. What it sells is reliability, not power, and it prices that reliability at the floor.