Summoner doesn't need Miasma and DoTs. Let's make Summoner NOT a DoT class, and have it focus more on...Summons. Like their GCDs could summoning the bust of Ramuh to call down Judgement Bolt, or the head of Leviathan to shoot Aqua Breath, etc.. It makes no sense from a lore perspective why Summoner has Ruin and Bio spells, they didn't have that stuff previously, but I guess in XIV they're filler spells between summony thing.