Duran OE Idea

LS:
Boost 50% to HP / Boost 50% BB fill rate / Boost 130% to ATK, DEF and REC when BB gauge is over 50% full / 6BC fill each turn
Normal attack: 14 hit
BB: 360%
15 Earth hit AoE / 10BC fill for 1 turn / 50% chance to reduce 50% enemy ATK for 1 turn / Boost 150% to ATK, DEF and REC for 3 turns / Boost 50% BB fill rate for 3 turns
SBB: 580%
19 Earth hit AoE / 12BC fill for 1 turn / Add 20% chance to reduce 20% enemy ATK to ATK for 3 turns / 60% chance to reduce 50% enemy ATK for 1 turn / Boost 4-7BC when ATKed for 3 turns
UBB: 1500% to 2500% based on allies' BB gauge (before the 999BC fill)
24 Earth hit AoE / 999BC fill for 1 turn / Boost 75BC for 5 turns / Boost 250% to ATK, DEF and REC for 3 turns / 100% chance to reduce 90% enemy ATK for 3 turns / Boost 600% BB damage for 3 turns
ES:
When Sacred Blade is equipped: Boost 30% all stats / Boost 3-5BC when ATKed / Boost 8BC when ATKing
OR
When Sacred Gem is equipped: Boost 100% to ATK, DEF and REC when BB gauge is full / Boost 20% BB fill rate
SP:
Add Boost 300% BB damage for 3 turns to BB/SBB - 40SP
Upgrade 300% BB damage to 400% BB damage to BB/SBB - 10SP
Add Boost 150% to ATK, DEF and REC for 3 turns - 50SP
Add Boost 8BC fill for 3 turns to BB/SBB - 40SP
Add 50% BB fill rate for 3 turns to SBB - 10SP
Upgrade LS 50% HP to 60% HP boost - 10SP
Boost 1-2BC when spark (self) - 20SP
Reduce 20% BC cost (self) - 20SP
Boost 20% to all stats - 20SP

What do you think about him? Idk why but to me is pretty hard to think of what to give Duran.-. If you have more ideas please say so in the comment section.

For ES I got confuse about his sphere if is Sacred Blade or Sacred Gem, so I decided to just put both.