Usually the least favored Svara champion, Ollag needs a lot to be going for him in order to be worth it. His ability is “meh” and he doesn’t really have great stats to compensate. However, he can be good if you manage to summon him early in the game and then get value for all of your Ice Golems, especially if you give Frost Axes to those 2/6 Ice Golems, then he can feel unfair. But other than very early in the game, it is usually preferable to just summon Bear Cavalry.