Armina, Vengeful Expatriate

First strike, highborn 3 (This creature enters the battlefield ruling 3 non-Lord creatures you control.)
Whenever a Serf you control becomes blocked, it gets +2/+2 until end of turn.
Whenever Armina deals combat damage to a player for the first time each turn, untap all creatures ruled by Armina. After this phase, there's an additional combat phase.