Demon World Castle, Totwachter (G-BT03/045EN) [Sovereign Star Dragon]

[AUTO](VC) Generation Break 1 (This ability is active if you have one or more face up G units in total on your (VC) or G zone):[Choose one of your grade 1 rearguards, and retire it] When this unit attacks a vanguard, you may pay the cost. If you do, this unit gets [Power]+5000/[Critical]+1 until end of that battle. [AUTO]:[Counter Blast (1) & Soul Blast (1)] When this unit is placed on (VC), you may pay the cost. If you do, search your deck for up to one grade 1 or less card, call it to (RC), and shuffle your deck.