What does the Ancient Mew card say
One other commander that I considered was the Partnered pair of Anara, Wolvid Familiar and Yoshimaru, Ever Faithful, and while those two certainly succeed in the flavor department, they simply dont synergize well with the rest of the deck
If you want to kill through combat damage, you can turn Volrath into either Cultivator of Blades or Wild Beastmaster and give all your other creatures +7/+7 when attacking, or go for an infect kill by turning Volrath into Jodah's Avenger, using its ability to give him double strike, but before the ability resolves turn into Blighted Agent to attack as a 6/4 unblockable infect double strike one-shot
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Also, its a great way to build a backup Brudiclad if an opponent tries to kill it before you go to your attack step