They should all cost.. around half of what the dragons cost.
Light dragon costs 12/2=6.. light drake costs 6, :bioluminessence.
phase dragon costs 13... so maybe 7 for the drake: immaterial
the rest would cost 5.. so lets see here
crimson drake: maybe it can have its own rage, or a 1 time use firebolt.. costing 2-4 quanta
Ice Drake: maybe give it a 1 time freeze or icebolt.. 2-3 quanta
Devonian Drake: cast procrastination on a creature, or reverse time, or even a draw card. (all a 1 time use)..3 quanta.. 2 for draw card
Purple Drake: cast a 1 time random deduction in attack and defense on target.. or a chaos seed. 3-4 quanta
Azure Drake: a 1 time thunderstorm, maybe a dive attack.. 3-4 quanta to use it
Black Drake: drain life on target creature (1time use like all of'em) cost 3 quanta
Earth Drake: Burrow for 1 earth, or evolve for 5 or 6 time quanta
Massive Drake: Momentum +1/+1 for 2-3 quanta, gravity pull if its made with much hp.. perhaps 10 hp for 2 or 3 quanta.. or the new black hole card coming out for 4 quanta.
Emerald Drake: heals you for 1 hp each turn, or heal yourself for 5 hp (1time use) 2-3 life quanta use
Bone Drake: Scavenger for 1 turn 2-3 death quanta
thats the ideas, generally all drakes are at half the attack and defense of the dragons
