"Beast's Battle", called "Battle Device" (とう Tōki) in Japan, is an archetype of Equip Spell support cards for the "Gladiator Beast" archetype that were released in Gladiator's Assault. Though the English lore of "Gladiator Beast Spartacus" states that it searches for a ""Gladiator Beast" Equip Spell Card", the Japanese lore states that it searches for an Equip Spell Card with "闘器" in its name, thus making this a separate archetype.