Castle Robber (TEU-010 N) [The Underworld of Secrets]

[Ambush] R (While this card is in your standby area, you may play it as a triggered object paying its [Ambush] cost if your opponent has drawn a card this turn. While you play this card with [Ambush], its cost is its [Ambush] cost instead of its printed cost.) Other Bandit J/resonators you control gain [+400/+400]. [Enter] If this card was played from a standby area, it gains [-200/-200], [Precision] and [Bane] until end of game. Banish a magic stone: Target J/resonator cannot be blocked this turn.