Echinacea got evasion and 1st turn 1.5x skill activation for 2 people (including her) after blooming. Her normal/evolved is mediocre since only 10% atk buff and 1.5x self skill activation. Stats wise, she's great for increasing your TP (16000/7000/3500). Her lv5 skill trigger rate is 35%.

But it's up to you to choose. My Echina still melts against that lv 160 cockroaches.

Personally I'm stuck between Beefsteak Geranium (tiger girl) and Ionocidium Xmas. I like the ability concept (18% atk buff for everyone if you feed her with skillbloom up to lv5 skill