Sun Fist, Sunshine Impact

<Dragon World> Arms - Vanguard (After being played, the vanguard arms it. If a new Item is armed, put this card into drop) Play this with [COST][pay a gauge]! [CONT](VC):During your turn, your vanguard gets [Power]+5000, and if you have a grade 3 or greater vanguard with "Gao" in its card name, all of your front row rear-guards with "Drum" in their card names get [Power]+5000. [AUTO](VC)[1/Turn]:When your vanguard attacks a grade 3 or greater unit, if a Buddy Monster rear-guard is in the Link Attack state, [COST][discard a "Sun Fist, Sunshine Impact" from hand], and until end of that battle, your vanguard's [Power] becomes ∞, and it gets [Critical]+1.