Senki Survival Saga: Isekai no Unmei wo Kaketa Mujintou Fujun Iseikouyuu - Vol. 2 Ch. 11 - You'll become friends if you can share

[Noskal_Borg]

they need to solve the water and food supply problem so they can get to the breeding asap

Honestly, yes. I could see them pouring magic for strength into the dragon to hunt, and magic for electricity into the elf to keep the phone alive.

The ML can the be the leader who sacrifices his stamina and coordinates their teching up.