- For the player term, see Summoner.
- V10.6 - Disabled
- Bonus health and duration changed to 30 / 120% (based on the number of Summoners) from 40 / 100%.
- V9.22 - Added
- Synergy: Summoned units gain bonus health and last longer.
- 3 Summoners: +40% health and duration
- 6 Summoners: +100% health and duration
- Champions: , , , , , .