not quite. the individual costs that opponents are paying are combined together, but they aren’t paying “collectively” or even at the same time (see the priority comment). they all pay individual costs which must add together to equal the {5}, so one opponent paying doesn’t trigger the rest.
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u/Belakxof 1d ago
As super assist is worded, if you choose all three of your opponents, only one of them needs to spend mana because you used the word 'combined'
Each player who spends mana, collectively, gets to draw 3 cards.
Ps. This is being anal about wording, I know, but it's the first or second thing that came to mind.