Conflicting objectives

This is just in the Oath event and Avacyn's Madness, since it was originally designed as basically a limited-time Story mode way back when (the original run of it had story rewards for each objective, except for the "win with every color" one).

The point is that each fight presents two very different challenges to make you play each node twice.

In Avacyn's event, it means if you fail one objective you can still salvage it with the other.

I get that nowadays its just weird and kind of annoying, but it did serve a purpose at one point and I highly doubt it'll change any time soon, it just won't come back in any future events (probably)