Doomcaliber Knight [TU01-EN001] Ultra Rare Ritual/Effect Monster Set: Tactical Evolution Card type:

Set: Tactical Evolution Card type: Effect Monster Rarity: Secret Rare Attack: 1500 Defense: 0 Once per turn

Set: Lord of the Tachyon Galaxy Card type: Effect Monster Rarity: Ultimate Rare Attack: 1400 Defense: 1300 You can discard 1 “Harpie” card

You can only use this effect of "Speedroid Terrortop" once per turn

also that face-up monster cannot attack

Doomcaliber Knight [TU01-EN001] Ultra Rare Ritual/Effect Monster Set: Tactical Evolution Card type:Set: Turbo Pack Booster One Pack Card type: Effect Monster Rarity: Ultra Rare Attack: 1900 Defense: 1800 This card cannot be Special Summoned. When an Effect Monster's effect is activated, you must Tribute this card. Negate that effect's activation and destroy the monster.