This is one change I'd love to see. Currently, Tyr's Fearless (Defense) does not provide any function besides mobility and damage.
Why does this need to change? Currently, once an enemy has purchased Magi's, your potential to provide anything in any fight suddenly plummets. A while ago, Tyr could use his knockup from his Fearless (Defense) to remove someone's Magi's. The developers decided that was too much crowd control for one god, so they removed the knockup.
I propose a very short hard CC be applied when Tyr passes through the enemy. Something attuned to Awilix's Feather Step, which grants Awilix mobility, damage, and a 0.6s root and cripple.
Some interesting combination would be a short cripple and root; cripple and slow; or disarm/silence. Remember, emphasis on short. The main purpose would be to pop bubble.
As it stand, Tyr's ultimate is very lack luster compared to other gods (in my opinion). Take Tyr verses Osiris, they both are leaps, apply CC, and damage. Tyr's ultimate has a plus because it's a greater area of effect. None the less, there are more attributes that are negative. For instance, Osiris applies hard CC and a healing debuff while being an instant jump. Tyr only applies a weak soft CC and has a very long wind up.
Causing Tyr's ultimate to apply a strong soft CC and a slightly shorter wind up would be welcome in my book.
Having stance specific attributes would also create interesting game play and meta dynamics. Say in defensive stance, you apply a slow, but in offensive stance you apply a protection debuff. Something along those lines.