Rudolph The Red Nose Reindeer:

 

Aphelion:

 Finally manage to get the Rudolph Pet with 20K Christmas Token, mostly got lucky with Laca Ball which give 2.5K of Christmas Token. Found out that it need Level 120 for Level 5 Buff, Level 1 when it is Level 25, Level 2 when it is Level 50, Level 3 when it is Level 80, Level 4 whe it is Level 100 and Level 5 when it is Level 120. And each Level need 5 Premium Bless, 500 Curse and 500 Bless, this will cost about 6.5T in total just for the 5% Attack and Hit Rate, as compare to Shiva Pet which need 1.75K Bless which cost about 875B.

Shiva still more useful with AOE Skill, even though it was Nerf from 50 Target to 25 Target. Summer Pet AOE Skill is 50 Target but the damage seem less as compare to Shiva when I try it on Boss. Scorpion got Poison and Cockatrice got Stun, Magic Eel seem to have Stun too but can't be sure as it can learn AOE Skill at Level 1 like Kelpie as compare Scorpion and Cockatrice at Level 38.