Does anyone feel like there needs to be more summoner spells?

well for starters i can safely say top and mid lane gets flash + ignite almost every game, being an exception to teleport and ghost for tanky top (malphite,nasus,mundo) as for jungle smite is a must for securing buffs drake and baron popularly pair with flash. bot lane is always flash + heal ignite barrier or clairvoyance(not as popular). all the other spells go to waste eg. clarity-useless after 20 minute cleanse-very rare revive-pretty self explanatory (with the exception of the few revive teleport karthuses) im say that riot should add more summoner spells. riot clearly stated that they want players to pick a different but viable way to play instead of autopicking the seemingly "good" pick such as flash which is a "must have" for almost all champs. sure u might say adding another spell op as flash will break the game but if riot adds like 7 more it would mean so many different combinations. i know this would never happen (yet) but if riot decides to bring in a summoner spell that marks ur target for X amount of seconds. if ur target dies while being marked their respawn time gets doubled. that means its godly op in lategame as u could be staring at the screen for ~2 minutes which is alot. itll be useless early game but once you get to lategame it trumphs other spells.....except revive...if riot did this people would think revive is a viable counter to that summoner spell. maybe implement a counter system with summoner spells as it forces the player to think very hard which one to choose as they might get countered by another summoner spell. not entirely countered to make it useless but like khaxix nerf where u can still use it effectively but more difficulty