In one of my last games before my computer died, Nymph was a game changer. She stole Silent Contemplation from K’ento and became a god.
Enchant: Magic and non-magic damage is nice for fairies. She was a powerhouse in a magic amp deck because of Soften and attack: magic, though. My computer is dead so can’t really play anymore for the foreseeable future. I’d be interested in seeing how Fae Enchantress and Wisp (equipped with Crown of Petals) would work together. Crown of Petals gives Wisp Impenetrable, making it hard to work around damaging it or removing the equipment by most means. Enchant: Magic makes the Wisp nicely buffed when equipped. If Wisp is upgraded with Magic Acolyte and Evasive, it would really be well protected by almost anything (no special abilities can target Wisp, reduced damage from range, damage shield for melee, self healing, not easy to disarm, etc). Fae Enchantress with Soften can then make Wisp hit a bit harder, too.
There's also self-synergy where Enchantress can enchant her summoned prismatic crystals to act as damage zones.
I do like the natural synergy of Enchant: Magic and dropping Prismatic Crystals. edit: you mentioned it first
How expensive is her Prismatic Crystal drop ability and Fairy Dust ability? I remember thinking they were expensive compared to other abilities but can’t remember why I thought that.
Fae Enchantress + Poisonquill Trap: Use Enchant: Magic on Poisonquill Trap. This creates a relic that does 14 aoe damage (Poison, Disease, and Magical) and takes damage when attacked at melee range. In addition, it is shadowspawned so without Detection nearby the opposing champion might waste an AP or two trying to find it. Fae Enchantress + Poisonquill Trap + Conclave Concordance: Same as above but you can use the summoned fairy to drop the shadowspawned relic and not worry about damaging your own champs. The summoned fairy can also attack/blind as normal. The Fae Enchantress does need to be close enough to use Enchant: Magical, of course. If the Fae Enchantress has Soften, Conclave Concordance fairies can hit a bit harder too.