Lexi
Essence of Ice and Lightning (You may have Ice and Lightning cards in your deck.)
Once per Turn Action - Turn a face down card in your arsenal face up: If it a Lightning card, your next attack this turn gains go again. If it an Ice card, create a Frostbite token under target hero control. Go again

Frostbite
Cards and activated abilities you control cost an additional [1 Resource].
At the beginning of your end phase or when you play a card or activate an ability, destroy Frostbite.