Next 4 dragons Crono was teaching in being a protectors, warriors and master there elements within

Striker, Silver Iron Dragon
Element: Metal+
Striker is one of the few Metal dragons that learn how to use the higher leaves iron in there body to make a protective shell around them. Striker is seen to be quiet and smart of the dragon Crono teaches however he has soon opened up for the others around. Striker is close friends with Turok as once there were in a tournament of strength, Striker came to Crono learning there is a chance other elemental powers are within him.

Hydra, 3 Headed Dragon
Element: Air+
Hydra is one mind with 3 heads, some rare that happens to dragons but doesn't affect there overall health. Hydra was both skilled and unpredictable thanks to his 2 heads, the middle head is the main head the secondary heads are forms of thoughts and emotions from Hydra, One is playful and aggressive and the other calm and passive. With Time and meeting new allies Hydra will become more trained and will meet new friends

Leo, Snow Dragon
Element: Ice+
Long time rival to that of Spike, Ice VS Fire, Leo was his name. Leo was is the most silent if not always never talks to many of the dragons only talks when its in combat or something important which goes against Spike "Out There" mind set. Leo when to see Crono what powers he has but for him it much more then that.

Turok, Taur Dragon
Element: Lighting+
This handsome 4 arm dragon is named Turok, born in a warrior family by heart. Turok is know for his hand to hand fights and great strength which ended up leading him to meet Striker an equal foe. Turok live a life about fighting and training but never saw anything else from it cause of his family history. Now with Crono and others Turok may unlock not only new abilities but maybe his family hidden history