Momentum Rumbler

A two-swing escalator built into one body: the first attack plants a first strike counter, and every attack after that checks for first strike and, finding it, hands out double strike for the turn. The sequencing is the clever bit. The first strike counter is permanent, so once it lands it never leaves; the double strike is a renewable per-turn grant that only triggers because the counter is already there. The counter is the durable enabler, and the payoff refreshes every combat. What the card asks, above all, is that it survive its first attack: that is the toll it pays to become a repeatable double-striker. That fragility is the whole tension. No evasion, no protection, so removal or an unfavorable block that trades it away ends the sequence before the engine turns on. A chump block does not reset it, though: the counter goes on the moment it declares an attack, so a body that simply eats the first swing without killing it leaves the double strike setup intact for next turn. Pump and haste sharpen the math dramatically, since a first strike counter plus a large buff turns the second attack into a haymaker where both halves of the double strike roll off the boosted power. Folding two combat keywords into one climbing sequence makes a lone 3/3 Dinosaur worth building around, with a high ceiling and a floor of a four-mana attacker that got answered before its engine came online.