Blue Mander:
Buy at Krokosphinx for 1500 Gold.

Ghoul:
Kill Grubb (Sunken City Final boss) 5-10 times.

Heckhound:
Buy at Krokosphinx for 1500 Gold.

Myth Sprite:
Kill Rattlebones between 5-10 times.

Pink Dandilion (Crowns Only Plant):
Kill random Krokotopia bosses.