Femeref Enchantress

Whenever an enchantment is put into a graveyard from the battlefield, draw a card.

Mesa Enchantress

Whenever you cast an enchantment spell, you may draw a card.

Whenever you cast an enchantment spell, draw a card.

Shroud (This creature can't be the target of spells or abilities.)
Whenever you cast an enchantment spell, draw a card.

Whenever you cast an Aura, Equipment, or Vehicle spell, draw a card.

Constellation — Whenever an enchantment you control enters, put a +1/+1 counter on Setessan Champion and draw a card.

Whenever you cast an enchantment spell, you gain 1 life and draw a card.

Constellation — Whenever Eidolon of Blossoms or another enchantment you control enters, draw a card.

Kor Spiritdancer gets +2/+2 for each Aura attached to it.
Whenever you cast an Aura spell, you may draw a card.