Question on Charm Mods and Totems

Always get confused by what applies to you, what counts as kills, etc when totems are involved

if i'm using an explosive arrow ballista totem and killing them with ignites then this should benefit me correct and give me increased flask charges

Enemies you Kill that are affected by Elemental Ailments
grant (26-40)% increased Flask Charges

However if i'm correct this wouldn't give me leach right since i'm not killing, the totem is or if i remember correctly since the totem is killing via ignite it counts as me killing it, but then would I get any leech?
2% of Attack Damage Leeched as Life and Mana if you've Killed Recently

There is no overkill damage to damage over time, so there's nothing to leech. And if the mob died to a totem's hit, it'd also not leech because the totem dealt the damage. So yes, those overleech charms are useless for you

Thats what I thought, the flask charges one should work though right

Yep, that one is fine