some changes to ranked & summonuer spells?

i think that for some champions should be certain summoners spells forbiden. like exhaust for assasins/skirmishers/divers. using exhaust on enemy from point of enemy: i cant run bcs im slower i cant fight bcs i deal no dmg. but this isnt the biggest problem. the problem is : im gonna die quicker bcs it reducing my armor and mr. second issue might be a heal on agro fighters like gnar/jayce. they have very good laning phase against meele champions and both of them have a way out of fight. but with heal enemies have even lower chances to kill them.on the other hand for marksmans is the heal weak when outnumbered so make some small buffs to heal to work similar like irelia passive and if you dont want increase heal make it for movement speed atleast.