Chain Lightning
Exceptional Magic of arcing current
Deal 2 damage to target unit nearby. Any number of times, you may spend ② to additionally target a new unit nearby the previous one.
Alan Pollack

FAQs
Q: Do I pay all the costs and choose all the targets when the spell is cast?
Yes.
Q: Does the damage resolve sequentially or simultaneously?
All targets take the damage simultaneously.
Q: Can additional targets be in different regions (as long as they’re nearby the previous target)?
No. Being nearby the previous target is an additional targeting restriction, not a loosening of the targeting rules, so all targets must be in the same region as the caster.
Q: Can I chain the lightning from target A to target B back to target A?
No, that’s not what “new” means. You can only choose new targets that haven’t already been targeted by the spell.
FAQs
Q: Do I pay all the costs and choose all the targets when the spell is cast?
Yes.
Q: Does the damage resolve sequentially or simultaneously?
All targets take the damage simultaneously.
Q: Can additional targets be in different regions (as long as they’re nearby the previous target)?
No. Being nearby the previous target is an additional targeting restriction, not a loosening of the targeting rules, so all targets must be in the same region as the caster.
Q: Can I chain the lightning from target A to target B back to target A?
No, that’s not what “new” means. You can only choose new targets that haven’t already been targeted by the spell.