These are the monsters which you can easily get by breeding common monsters. There are not too powerful, but can be pretty tough if you train them fully!
Firanda
Fire Lion + Panda Elements: Fire, Nature Available in shop: Yes Price: 60 gems HT/BT: 30 secs Rate (lv1): 5 gold/min
Gigram
Fire Lion + Thunder Eagle Elements: Fire, Thunder Available in shop: Yes Price: 210 gems HT/BT: 5 hours 30 mins Rate (lv1): 8 gold/min
Flickie
Fire Lion + Tyrannoking Elements: Fire, Dark Available in shop: Yes Price: 420 gems HT/BT: 16 hours Rate (lv1): 5 gold/min
Rarawr
Panda + Gorilla Elements: Nature, Earth Available in shop: Yes Price: 90 gems HT/BT: 10 mins Rate (lv1): 5 gold/min
Utochomp
Panda + Tyrannoking Elements: Nature, Dark Available in shop: Yes Price: 420 gems HT/BT: 9 hours Rate (lv1): 4 gold/min
Vixsun
Panda + Light Spirit Elements: Nature, Light Available in shop: Yes Price: 750 gems HT/BT: 16 hours Rate (lv1): 4 gold/min
Gastosquish
Gorilla + Turtle Elements: Earth, Water Available in shop: Yes Price: 300 gems HT/BT: 10 hours Rate (lv1): 5 gold/min