Rahab, the Emperor Dragon of Riptide (1-125) [The Dawn of Valhalla]

Resonator: Dragon [Enter] Return other resonators and additions to owner's hand. [Continuous] ATK of this card is equal to [the number of all cards returned to your hand by [Enter] x 200]. [Continuous] If you choose this card as an attacker, all player cannot play spells or [Activate] until end of the battle.