Call Down the Lightning [DTD198] (Dusk till Dawn)

Lexi Specialization (You may only have this in your deck if your hero is Lexi.)

Your attacks this turn get "Whenever the defending hero adds 1 or more defending cards from hand to this chain link, this deals 1 damage to them." Go again

Unity - When this defends together with a card from hand, create an Embodiment of Lightning token under any number of heroes' control.