User can generate a field that drains all mana inside of it.
- Field is limited to draining mana, it doesn't absorb it.
- It's useless against people who don't rely on mana in order to fight.
- Charmcaster (Ben 10 series)
- Gwen Tennyson (Ben 10 series)
- Verdona (Ben 10 series)
- Valério Calvados (Dog Days)
- Satsuki Yumizuka (TYPE-MOON)
- Reverto Meus Ops Mihi (Ben 10)
- Contego (Ben 10)
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