Ancient Warriors - Valiant Zhang De [IGAS-EN013] Rare

Gains 300 ATK for each monster your opponent controls, during your turn only. You can only use each of the following effects of "Ancient Warriors - Valiant Zhang De" once per turn.
• If you control 2 or more "Ancient Warriors" monsters: You can Special Summon this card from your hand.
• If your opponent controls more monsters than you do: You can activate this effect; this card can make up to 2 attacks on monsters during each Battle Phase this turn.