5*'s with unique abilities:
1. Cymbidium. By far the best 5* around with her 2x trigger rate on the first round for the entire party. Dendrobium's variation only applies to Dendrobium herself, not the rest of the squad.
2. Chocolate Cosmos & Lantana for their Chocolate Healing nodes.
3. Strawberry Candle for her Solar Shrine nodes. (only really interresting if you actually use Solar Blast, but if you do, she spawns upto 3 shrines each filling half your solar power bar)
4. Southern Cross & Gentian with their Trigger Rate Debuff. (they're event girls though, so not subjects for your ticket)