mtg commander competitive decks card power level magic the gathering The inclusion of 10 double Top Commanders | EDHREC

Vohar, Vodalian Desecrator isnt technically a Merfolk Commander, but it could be

Once you reach the phase of the game where you can afford to do multiple things per turn, you need card draw to ensure you keep having things to do (Circle of Power, Fight On!, Travel the Overworld) or at least cards which can be used multiple times (flashback spells, Ring of the Lucii, Shambling Cieth, Relentless X-ATM092)

Though I wouldn't play Delay or Stifle if it weren't for this lair - not when Counterspell and Negate are right there - these cards all work in a Xanathar deck

Uchbenbak, the Great Mistake

7,000 Non-foil Sol Ring (Dwarven) : Priced around $175 in near-mint condition