What would you like to see?
An enemy like the dragon in The City in The Sky level in TP

What kind of fighting strategy?
Instead of having to weigh it down, you target it from a high point and when it reaches you, you have to jump onto it. While doing that, you have to manuver your way to it's head to stab it in a weak spot causing it to lose control. Once it does that, it crashes into a wall or something and then falls. Once it falls, you continue hitting it with your sword

Any certain items you'd like to use against the boss?
A sort of hootshot or clawshot

How much damage should his attacks cause?
One swooping down attack makes you lose 2 hearts (you'd face it later on in the game so you have plenty of hearts) and one fire breathing attack makes you lose 3

Should the boss follow the three hit / five hit pattern?
idk what you mean by this but i'm assuming you mean 3-5 hits, enemy recover, 3-5 hit, enemy recover, 3-5 hit, enemy dies