Thread:PassionatePubli/@comment-45306549-20200326080104/@comment-32094364-20200328145406

Both are helpful in different ways. Ocean Dragon summons a whirlpool that collects all the Jellies that it hits and restores Energy the entire time the whirlpool is active, Magmabird causes you to dash at given intervals and when the Cookie runs out of Energy it revives them once. (It also revives the relay once)

In the end they're both very good and I would recommend trying to get both when you can! You can pick either as your first option.