AmouxCreationsX
Those are dumb wishes, especially the last wish. Wishing for long sleeps to recover his energy? So he can be easily killed in his sleep? Dumb. He should have wished to be able to absorb the life force of other living beings to recover his life force without a limit. That’s much less of a weakness than some Odinsleep nonsense.
Wish granting, systems, and desired world of reincarnation make for a clown story. Never give your MC extraordinary advantages or any advantages for that matter. Their modern knowledge is already an unfair advantage, most so the familiarity with the world they’ve reincarnated in. This isn’t a great or good start, and quite honestly, the MC’s advantages are off putting. Dragonlords don’t have immunity to fire, maybe some minor level of resistance compared to the common man but not outright immunity.