Prickleboar

A 3/3 that swings as a 5/3 with first strike is essentially two creatures wearing one body, and the divide runs along the phrase "during your turn." On offense, it punches through chump blockers and trades up against anything its size, the kind of attacker that forces a doubled-up block or a hard answer. The moment your attack step ends and the turn passes, it shrinks back to a plain 3/3 with no evasion, which is exactly the point: it defends like the modest creature its mana value suggests, not like the threat it becomes when you swing. That asymmetry is the whole design discipline. A creature this large and aggressive would be oppressive if it held the ground as well as it stormed it; pinning the bonus and first strike to your own turn lets it hit hard on the attack without shutting down the opponent's own attack step. It is a clean lesson in how a static-but-conditional buff can split a single permanent into an aggressive attacker and a soft blocker, with no activation cost and nothing to hold on the stack. The boar simply remembers whose turn it is.