Talk:H Episode 44: Odd Couples! Kiri and Rouga vs Noboru and Davide!/@comment-25600444-20160212233432/@comment-24965906-20160213011725

It appears that in Tag Fights, it's basically the 1 vs. 1 games, except just with two extra fields. So all effects, rules and things that would occur in the single matches are in the Tag matches as well.

So with Proud Song etc. cards, it'll affect all cards on the four fields that fit the requirements. Field wipes like World End and Ragnarok kills all four fields, and targets that state to choose opponents, you have to select one of the two.