Haelish Ascended Demon

Lifelink, Flying, Demonic Essence 7

{t}: You may sacrifice any number of Lesser Demon Creature token you control. For each one sacrificed, draw a card, and you may use their combined Demonic Essence during your end step.

If you have an Archdemon creature on your battlefield, Haelish Ascended Demon gains Haste

Each time you cast any spell with the sub-type Demonic, regenerate Haelish Ascended Demon and grant it +2/+2.