| 1 |
This effect refers to the exact Mana cost of the spell, Elements and quantities must be respected. |
| 2 |
By "Mana cost", we mean the cost displayed on the card, and not its preparation cost which may have been modified by various effects. |
| 3 |
If the targeted Permanent should be discarded before Antimatter applies its effects, it isn't a valid target to "destroy" anymore (Since it is not controlled). Since it's not a valid target, the effect is entirely ignored. (The Mana cost of the Permanent does not have to be paid) |