Red Mage: I am not a Back line class

[Firon]

Actually, that's not true. In most games, summoning was it's own thing, not really associated with any other type of magic. While it was true that the same character had white magic and summoning magic in some of the games (IX and X specifically), most of the time, it was its own thing which can be used in conjunction with other types of magic (III, V, XI) or other magic (IV) or it's own special system (VI, VII, VIII, XII, XIII).

It is not true that summoning magic has always been with healing magic.

No actually most games where summoner is tied to a char and not a equipped item like FF 6-8 it has mostly had white magic. Rydia had both white and black Eiko and dagger both had white magic and so did yuna That right there is like the whole FF series iconic summoners...