Often the least summoned of the Tundra Orcs champions, not because it’s weak, but because the other two Tundra Orcs champions are so good.
Ragnor is, however, key when wanting several Tundra Fighters in your game. Ragnor indirectly boosts Tundra Fighters, converting them into great killing machines against small units. He also combos well with several other cards in the game.
While he is never a bad champion to summon, his key role really is to buff Tundra Fighters, so if you don’t plan to summon at least a couple of Tundra Fighters, there are probably better uses for your magic than Ragnor.