A cool mechanic I thought of for a new tank champ is like bond of stone, but stronger

The champ would cast the ability on his ally, making a percent from 30%-50% damage go to the tank instead for up to 3 seconds.

Or another ability I thought of is with a tank or bruisers ultimate that they gain charges and when they use the charge, the next ability or auto to hit them does 0 damage, including dots.

But the coolest one I thought of is a tank that can summon minions to fight with him that count for his passive that for every non minion unit within 1500 range, this champ takes 2% reduced damage.

So think a full teamfight and he has 5 minions out, thats 30% damage reduction right there.

Thoughts on these ideas?