My idea for a DoT sustain

5 Star Ice Nihility/Abundance 250 energy

Basic attack: Deals 100% atk to one enemy

Skill: Select one enemy target and give them an additional action, during this additional action the enemy is considered frozen and can not act.

Ultimate: Regenerates all allies Ultimates by 20%(Excluding the user). Gives two stacks of (A)

Enhanced skill: Uses one stack of (A) and does not consume skill points. Selects all enemy targets and gives them an additional action during this action enemies are considered frozen and unable to perform actions.

Talent. When allies attack enemies applies one stack of ice DoT that deals damage equal to 50% of attack. Whenever enemies receive dot damage, allies receive healing equal to 1% of attack for every dot triggered.

A2: During the additional action, the dots dealt to enemies do not lose turns remaining and are not reset.

A4: For every dot triggered regenerates 1 energy.

A6: For every 1 point of speed above 150 increases damage taken by enemies, up to 30%

E1: The ice dot has it's damage increased by 300% of attack. Using Ultimate advances allies turn by 24%

E2: When using Ultimate gives 2 additional stacks of (A) and the character gets one additional action.

E4: Enemies have their damage taken increased by 20% during the additional action given by Skill.

E6: The energy given by the Ultimate is increased to 40% and her the energy given by the a4 is increased by 50%

Lightcone: Speed is increased by 18%. Dot damage dealt by allies is increased by 32%. When using Ultimate regenerates 1 Skill point