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AUTO 【V】: When this unit attack a vanguard, this unit gets Power +3000 until end of that battle.
AUTO: [Soul Blast (5)] When this unit is placed on Vanguard Circle, you may pay the cost. If you do, choose up to three of your 《Royal Paladin》 rear-guards, and those units get Power +5000 until the of turn.

The Ultimate Cosmo Dragon, Soul Saver Dragon!! Combine with a Royal Paladin deck using Barcgal as a starter to superior ride Blaster Blade and building up your soul along with the addition of Pongal to search for the ace, Soul Saver Dragon, you can easily win the game in one turn with three attacks thanks to its skill, especially by then your opponent would have 3 or more damage already. It's also best that you have a few stand triggers since it gives you an addition attack with not only power from stand but also from Soul Saver's skill.
The only weakness of this deck is that if you don't have the three rear-guards needed for Soul Saver's boost then it all goes to waste.

I personally rate this card a positive 9.5 out of 10, just simply because it looks so cool!!