Sythis, Harvest's Hand

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

Argothian Enchantress

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 enchantment spell, you may draw a card.

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

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

Whenever you cast an enchantment spell, draw a card.

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