Yes it does sound weird when it’s put that way.

Void Calamity
Continuous Spell Card
You can only use 1 effect among the (1) and (2) effects of this card name per turn and only once that turn.
(1) You can discard 1 card; send 1 Fiend monster from your Deck to the GY.
(2) You can send this face-up card in your Spell/Trap Zone to the GY; send “Infernoid” monsters with different names from your hand or Deck to the GY, up to the number of monsters your opponent controls that were Special Summoned from the Extra Deck.

Source.