Cu Chulainn the Awakened (STON-EN033) [Strike of Neos]

This card can only be Ritual Summoned with the Ritual Spell Card, Emblem of the Awakening. Once per turn, you can remove from play 1 Normal Monster from your Graveyard. This card gains ATK equal to that Normal Monster's ATK, until the Standby Phase of your next turn.