In PoE 3.13 Ritual: Echoes of the Atlas, your microtransactions can now be applied to all active skill and support effects that come from item mods. For example, your totem microtransactions can now be used with Soul Mantle.

Soul Mantle

(100–120)% increased Energy Shield
(20–25)% increased Spell Damage
+1 to maximum number of Summoned Totems
50% increased Totem Life
Inflicts a random Hex on you when your Totems die, with 80% more Effect
Socketed Gems are Supported by Level 20 Spell Totem

Some other examples include: 

Tear of Purity (Purity of Elements), Ashcaller (Summon Raging Spirit), Doedre's Skin (Summon Doedre's Effigy), Lioneve's Paws (Rain of Arrows), Hyrri's Truth (Precision), Heretic's Veil (Blasphemy), Balefire (Scorching Ray)