Vial's Incineration Pit

Whenever a player casts their first spell each turn, its controller chooses a player at random. Vial's Incineration Pit deals damage equal to that spell's converted mana cost to that player.
Whenever a player casts a Goblin spell, its controller chooses a player at random. Vial's Incineration Pit deals damage equal to that spell's converted mana cost to any creature or planeswalker that player controls.