I think it would be great to expand on the concept of elemental siphon with 2 new abilities for SMN in the upper 90 range.

Celestial Siphon
* Drains MP from your summoned Celestial Avatar.
* Obtained: Summoner Level 99
* Recast Time: 5:00
* Duration: Instant
* Distance: Self
* Shares a timer with Elemental Siphon

Terrestrial Siphon
* Drains MP from your summoned Terrestrial Avatar.
* Obtained: Summoner Level 99
* Recast Time: 5:00
* Duration: Instant
* Distance: Self
* Shares a timer with Elemental Siphon

This would allow the usage of the Avatars MP without the game breaking "lets siphon everything we got" mentality that alot of us would have if they all had their own timers. It would also be nice to see the ability to merit elemental siphon to also grant a bar- style effect as well as MP to keep elemental siphon as a viable option for use.