Shade of Akama

Immune (Can't be attacked, damaged, or targeted.) At the start of your turn, Shade of Akama deals 1 melee damage to target opposing hero or ally for each Ashtongue Channeler in your party. When the last Ashtongue Channeler leaves your party, flip Shade of Akama. Shade of Akama has +3 ATK while attacking. At the start of your turn, choose an opposing hero. Shade of Akama has an additional +3 ATK while attacking that hero this turn. When that hero is destroyed this turn, destroy all opposing heroes.