M!Robin IV

hello! my m!robin was the first 5* i got and is still the unit i use the most, hes s supported and +2 merged, but i only now realized hes -def which sucks.

but when i was trying to summon for winter robin (who i didnt get ;-;) i got 2 new robins so i need some advice.

+spd -def (current one)
+spd -hp
+spd -res

got blessed with that +spd lol