Input
Output

Edison-Accurate PSCT:
① If a monster(s) would be Summoned,
OR if a Spell/Trap Card is activated: Pay half your LP; negate the Summon/Activation, and if you do, destroy it.
Edison Rulings:
This effect can't negate monster effects that start a chain, even if that effect would special summon a monster.
For example, it can't negate Gorz, The Emissary of Darkness' effect.
