Boulder Fetter, Gjoll (G-BT08/029EN) [Absolute Judgment]

[AUTO]: Revelation -(RC) (When this unit is placed on the specified circle, look at the top card of your deck, and you may put that card into your soul. If you do, [Rest] one of your rear-guards) [AUTO] Generation Break 1 : [Counter Blast (1)] When this unit is placed on (RC), if you have a vanguard with "Fenrir" in its card name, you may pay the cost. If you do, until end of turn, this unit gets [Power]+4000, and"[AUTO](RC)[1/Turn]:[Soul Blast (3)] When this unit attacks, you may pay the cost. If you do, draw a card.".