|This build aims to turn male Robin into a cheap specialized check, as he can take on colourless units thanks to his weapon. With this kit, even the strongest archers will be unable to defeat him, as long as he's healthy and preferably buffed.
His weapon is the Blárraven+, which gives him an advantage against colourless units, along with the advantage against reds he already has, having effective advantage against half the colors in the game.
His Assist is either Reposition or Draw Back. Either one works, with Reposition being more versatile, as Robin would be able to help allies jump into the fray or out of danger, while Draw Back has more defensive applications as it allows Robin and his ally to retreat. Use whichever is preferred.
Bonfire is his Special, as he comes with it naturally and it runs off of his decent Def stat.
Robin's A skill is Triangle Adept 3, which heightens the advantage that he gets against colourless foes even further. This does make him more susceptible to greens however, which he couldn't defeat anyways, and foes with Cancel Affinity can nullify his advantage.
His B skill is Bowbreaker 3. With this skill, he can double any archer while they would be unable to double him, although this will not stop Brave Bow+ users from hitting him twice. With his weapon's advantage against archers, Triangle Adept boosting that advantage, and Bowbreaker allowing Robin to double them, this makes Robin an effective anti archer.
His C skill can be Spur Def 3, as he comes with it naturally. This allows him to help support his team by helping mitigate physical damage they can take. Ultimately however, any other C skill can be used instead depending on what the player needs.
His Seal is Squad Ace B 3, boosting his Def to an even 30, which makes his Bonfire add a consistent 15 damage.
Robin has a very balanced stat line, with good Def for a mage, which is somewhat unusual. Given that his stats are balanced across the board, he is suggested with a neutral statline. All of his stats matter in some way. His physical stats help him combat units like archers, and he'd still have enough Res to engage red mages or staff users thanks to his heightened advantage. However, should the player already have an answer to them, then a -Res bane can be suggested if needed, and his boon could be, say, +Atk. Robin is best used as an anti archer, thanks to his decent Def stat and his advantage against them. He can bait them out and survive the encounter, and with his B skill, he should be able to destroy them on retaliation, if not heavily injure them.