Should i summon for S!Alfonse...

I recently pulled S!Catria(+Atk,-Res) on my free summon and pulled S!Sharena(+Atk,-Def) in about 100 orbs after being pity broken by a julia(+Spd,-Hp) first. I have about 400 orbs and I really want S!Alfonse but I'm afraid to be pity broken to death should I go for it or wait for the legendary banner. Send help!!!