Lexi, Livewire
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

Rosetta Thorn
Once per Turn Action - [1 Resource]: Attack
Whenever you attack with Rosetta Thorn, if you've played an attack action card and a non-attack action card this turn, deal 2 arcane damage to target hero.