This is an extremely old card, long before PSCT exist. The confusing text is an artifact from that old era.
PSCT is created by YGO's TCG branch exactly to make card texts clearer in English. The only question is when are they going to reprint this card with PSCT in TCG......
They should just get rid off those silly "features" like non-targeting effects or missing the timing. It makes the game only unnecessarily complicated.
Step 1: make a broken card
Step 2: never limit it
Step 3: when the profits start to go down said the card misses timing or some bu lls hit
Step 4: release a card that does exactly the same but with no bu lls hit attached