Speedroid Terrortop (SP17-EN022) [Star Pack - Battle Royal]

If you control no monsters, you can Special Summon this card (from your hand). When this card is Normal or Special Summoned: You can add 1 "Speedroid" monster from your Deck to your hand, except "Speedroid Terrortop". You can only use this effect of "Speedroid Terrortop" once per turn.