Tomb of the Overthrown King

{t}: Add {c} to your mana pool.
{2}{r}{r}, {t}: Deal 3 damage to target creature you control, then each player may deal 3 damage to target creature they control. Each player who doesn't takes 4 damage.
"The stories here remind us that even our closest friends can be our worst nightmares. It's a shame that this place has forever stained the Qwarrcall name." - Sinder, Aurora of Affairs