[Meglobob]

There are alot of higher level summon spells that are as or more powerful than the vast majority of pretenders already. So why not change Terrasques/Iron Dragons to be effected by Dragon Master?

Its all very high level, end of game stuff anyway, so at that stage so much heavy duty stuff is flying around I cannot see any problem with balance. A well equipped SC would still take out dragons fairly easily. Just like tartarians are killed in a couple of battle rounds at present.