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Grima!Robin build
Hey guys, so--quick question. I pulled two Grima!Robins on the banner a while ago, but I haven't done anything with them - one has neutral IVs and the other one is +Atk/-Def.
I'm leaning towards the +Atk because of obvious reasons, but if I do then how can I make up for his -Def? (And is it worth merging them or should I just feed the other off?)
Thanks in advance!

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