Shatterskull Smashing // Shatterskull, the Hammer Pass Modern Horizons 3 Commander creatures you own have

Commander creatures you own have "Whenever you cast a spell that shares a creature type with this creature

Spree (Choose one or more additional costs

this creature deals damage equal to that spell's mana value to target opponent

Multiple instances of cascade each trigger separately

Whenever this creature enters or attacks

Shatterskull Smashing // Shatterskull, the Hammer Pass Modern Horizons 3 Commander creatures you own have**Shatterskull Smashing** Shatterskull Smashing deals X damage divided as you choose among up to two target creatures and or planeswalkers. If X is 6 or more, Shatterskull Smashing deals twice X damage divided as you choose among them instead. **Shatterskull, the Hammer Pass** As this land enters, you may pay 3 life. If you don't, it enters tapped. {T}: Add {R}.