In an announcement on their website, Riot has released details on Summoner Spell changes coming to the PBE, and eventually to the main client in Season 4
With these changes, Riot says that they are aiming to “increase the diversity of summoner spell choices” come Season 4. In addition, Riot mentioned that along with these changes, masteries would be reworked, notably taking away masteries which improve Summoner Spells.
Ghost
- Cooldown rescaled to 180/160/140/120 from 180
- Now grants 20% Multiplicative Movement Speed from 27% Additive Movement Speed
- Grants 75% Multiplicative Movement Speed in the first second
- Now immediately updates your pathing on cast
- Ghost cannot be cast if you are immobilized
Ignite
- Damage rescaled based on game time
- Now also reveals the target for the duration.
Exhaust
- Attack Speed reduction reduced to 30% from 50%
- Movement Speed reduction rescaled to 30/35/40/45% from 30%
Heal
- Now a targeted spell, casting this on yourself will target you and the closest nearby ally
- Cast Range increased to 900 from 600
- Cooldown reduced to 180 seconds from 300 seconds
- Grants 30% movespeed to both targets for 1 second
Teleport
- Cooldown reduced to 180 seconds when targetting an allied building
- Cooldown increased to 300 seconds when cancelled or interrupted
Cleanse
Successfully cleansing an effect that prevents you from moving creates a shockwave that knocks nearby enemy's back slightly.
Smite
Cooldown lowered to 40 sec.
Damage reduced at early character levels, same damage at level 18.
Clarity
- Now only available on Howling Abyss
Revive
- Now only available on Dominion
Source: Riot