I have no clue where you got your Reborme's Scheme skill translation from, but:
When HP is 40% or lower, ATK +1.5, DEF +3, weapon's reload speed is up by 35%, SP dmg +20%
Only 20%. And Reborn's doesn't have an exceptionally high Range SP stat. Point I'm trying to put across: Alvatore has really low HP.
Game Count: 3200 Win Percentage: 65.81% Ranking: #15