I just summoned Summer Xander, but he is -HP, so should I give him a different A skill for him or just let him equip Fire Boost? What should I give him?
the HP +3 seal should help offset the gap, but since most people would have that anyways, its a difference of 43 vs 46 HP. And since you need 3 more to trigger Fire Boost, you can only get this against people at 40 and less which isn't nearly as many excluding mages and archers really.
Personally, I'd say the a skill depends on his use. Do you want him spamming support with Infantry Pulse more? fighting off Lances like a boss? generic axe unit?
My Xander is -HP as well and i havent even bothered learning him fire boost. This depends on his boon, but i gave him defense emphasizing skills and he runs those quite well.
I cant say from experience, but the only ones you will trigger fire boost with 40 hp are mages which usually have puny defense anyway so you wont need an extra 6 attack against them. Regular attack+3 might even be a more reliable alternative, or death blow or whatever you prefer. If yours is +spd even darting blow would be an option since 39 speed is nothing to scoff at.
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