Glowstone

[Empower] :rb_rune_rainbow::rb_rune_rainbow: (:rb_rune_rainbow::rb_rune_rainbow:: Empower me. Use only if not Empowered.) Disempower this, :rb_exhaust:: Choose a player. They gain control of this and recall it. (Send it to their base.) At the end of your turn, kill this and deal 5 to all units you control.