With the build, put the Ensnare/Drain auras fairly far forward to ensure there's some coverage of the Western core. This is the only spot where the build has a chance to fail, especially if you have low Warden stats. Higher stats than stated on the build for her are recommended.

With such mediocre stats, I recommend pre-upgrading the tower buff beams to level 4 before the first combat. Higher stats shouldn't need to do this

In the wave, have your Warden builder, a Tower Booster and an afk Summoner (can be guardians, but I tend to use healer since it's safer)

Wave 22 - use an Upper Adept to upgrade towers quickly.

Wave 23 onwards - use a Jester to wheel Gold Enemies to increase boost quality for as long as the waves are comfortable. If waves start to be more of a struggle, you can swap to supporting wheels instead.