Hello! I play a Summoner IC so I thought I should add my thoughts, though most of what I'd say has already been said.
My character is an adventurer with the Echo who was actually present and helped slay the Primals she can summon, Titan and Ifrit. (She's also ICly fought Ramuh, thanks to Dogberry's events, but cannot pull an Egi out.) I took the approach that "Primal summoning happens a bit more than we see in the MSQ," which not everyone agrees with, but I feel is acceptable within the game's lore. People can't even seem to agree on just how common the Echo is for adventurers (and laypersons).
My character is also very paranoid, and takes her status as a Summoner more seriously than the characters around her often do: She's very hesitant to pull an Egi out with strangers around due to the reaction ordinary people should have to it (adventurers don't seem to care much at all though)!
It's not incredibly difficult to make it possible for your character, but you do have to take into account how the game presents magic, Allagan magic in particular, before you go around blasting everything with Evoke!
My character is an adventurer with the Echo who was actually present and helped slay the Primals she can summon, Titan and Ifrit. (She's also ICly fought Ramuh, thanks to Dogberry's events, but cannot pull an Egi out.) I took the approach that "Primal summoning happens a bit more than we see in the MSQ," which not everyone agrees with, but I feel is acceptable within the game's lore. People can't even seem to agree on just how common the Echo is for adventurers (and laypersons).
My character is also very paranoid, and takes her status as a Summoner more seriously than the characters around her often do: She's very hesitant to pull an Egi out with strangers around due to the reaction ordinary people should have to it (adventurers don't seem to care much at all though)!
It's not incredibly difficult to make it possible for your character, but you do have to take into account how the game presents magic, Allagan magic in particular, before you go around blasting everything with Evoke!