Lv 96
I think at level 96
96
The Legendary Pokemon Heatran can be found at the final chamber in stark mountain. It will only be there if you have had Buck take and then return the Magma Stone (or something like that). It will be at Level 70.
Heatran cannot learn fissure.
Level 36
Level 57
I dont think it can learn it.
Level 22
At Level 76
At level 17.
Level 96.
Level 8