One thing i would love to see for SMN is for avatar's stats/hp/defense etc all to be based on thier corresponding day, example, on firesday Ifrit is stronger, attacks faster hits harder more accurate, , more hp etc. and on waters day he's weaker in those. maybe even give them an exclusive ability/spell on there strong day, this would force smns to stratagize around not abusing one pet all the time (looking at you garuda!) or this could possibly make smns fear iceday.