More spells like caitlyn's ult (Targeted Interceptable Projectiles)

Just an interesting thought I had. Skillshots are difficult to land and can be easily intercepted or dodged, While targeted effects are frusterating to play against, because there's not way to actually interact with them besides shields and zhonyas. I would like to see more spells that behave similar to caitlyn's ultimate, that is: Targeted projectiles, which follow the target and impact. These spells would have 3 main things in common: They could be intercepted, and they travel to the target, curving to hit if necessary. Such abilities would allow a space between skillshots and targeted abilities, and also have a wide variety of behaviors which could be tweaked for balance, such as: Projectile speed (Allowing easier intercepts), Projectile lifetime (Allowing targets to outrun the projectile to evade it), Minion interaction, Terrain interaction, Dash/flash/untargetable evasion (Projectile loses lock-on after one of these has occurred, either resulting in the projectile dissipating, or continuing on a straight line on its previous path) I would love to see abilities like this introduced more often, for example, during Urgot's rework. (A locked on acid hunter missile could be blocked by other champions, travel a bit slower, and lose lock if the target becomes untargetable, resulting in the missile beginning to interact with minions as normal, and cease tracking)