Speaking of Wind, funny that until Garuda's 2nd reprint half a year away, the best option to pick up more HP will be Sitri's weapon from Monoceros raid next month. It's Assault (S)/Defender (S), and yes, it's yet another gun.
Then there's Garuda hammer itself, plus the axe that's Vigoras (M)/Defender (S). Unfortunate that the thunder tower event takes place before Garuda... xP