New item ideas (for tanks)

This is a way how to reduce damage in a way for the game, I don't want tank builds to have to require these two items exclusively, because it decreases the amount of variation in tank builds, but this is a good start for some of these items.

Helm of Farron - 300 Health, 80 armor, 10% CDR, 50% health regen Passive - Decreases damage taken by 3.5% temporarily each time struck by an enemy for 8 seconds, which also stacks capping up to 10 times. (Hits taken even at max stacks resets the duration)

Icathian Cowl - 250 Health, 45 magic resistance, 50% health regen, 200 Mana Passive - After a 40 second cooldown, the user gains an ap shield based off 150% of their total magic resistance, and gains 10% movement speed as long as the shield is up.

Just some small ideas, comment your thoughts.