|Hey guys, Trinitronity is here once again. Frustrated with a Sonya who just refuses to show up, but you have a Merric to spare? Well, worry not! Since both have similar stats and Merric is able to learn Sonya's Dark Excalibur, you can actually turn Merric into an alternative Sonya! And how? By turning him into a Player Phase damage sponge, of course!
With the Dark Excalibur weapon, he'll be able to boost the damage of his special skill. +10 may not sound much, but it does make a difference. Plus, it's still more useful than his original Excalibur.
His assist skill can be any of the popular infantry movement skills, so go nuts there.
Since Merric will be a damage sponge, his special skill should of course be Reprisal (or Vengeance if you're okay with a slightly longer cooldown, but a higher damage boost). Because the more damaged Merric is, the more damage he can shell out with his special skill. Also, remember how Dark Excalibur boosts the damage of his special skill? Well, that's why Reprisal would be the prefered choice, since a small special skill cooldown means he'll be able to use the special skill more often.
His A Skill was originally going to be HP +5 (and it's still at least an alternative) since more HP means he can receive more damage, which he can then convert into a bigger damage boost for his Reprisal. However, IS decided to introduce a nice little A skill called Green Duel Infantry. So let's just steal it from that burned Helbindi corpse over there. He doesn't need that A skill anymore anyway, so let's just give it to Merric instead! For those not in the know: Green Duel Infantry is essentially HP+5...except it also makes sure your Merric's Arena score is not less than 170 points. And hey, it has a high SP cost, and skills with high SP costs boost the unit's arena score as well! Also, use a HP+5 seal to further boost his HP, allowing him to take even MORE damage he can use to convert into an even BIGGER damage boost for his Reprisal!
His B skill is Brash Assault due to his Damage Sponge nature, which is also why this Merric is specifically a Player Phase build. With enough damage, if Merric initiates the attack, he does an immidiate follow-up. And since he's a damage sponge, he WILL have enough damage to perform the immidiate follow-up attack, and the opponent WILL be doubled...unless the unit is a close range fighter without Distant Counter and a high speed, of course (aka someone like Ayra, but why would you pit a green unit against a red unit anyway?).
His C skill needs to be a skill that can lower the opponent's Res before Merric attacks. And Threaten Res is the only good choice for that matter because his Res is way too low to make Res Ploy useful. Alternatively, you could just give him Odd Atk Wave to just directly boost his offense (as well as his arena score because of that skill's high SP cost).