As Commanders progressed, Ive become less and less interested in universal card draw in my group hug decks, so I prefer Howling Mine variants that give you control over the card draw
His human form is a four mana 4/4 that lets you attack Auras and Equipment to a Creature you control for free, and also gives equipped and enchanted Creatures double strike
His sacrifice ability is something I love to have in creature decks, and Ive long played cards like Selfless Spirit and even Dauntless Escort to get this effect
The Commander format also features multiple legal cards with scry X, where X is usually fueled by more mana
What makes her stand out is her Ready ability, allowing you to Ready her whenever you heal one of your Characters
For example, Ive used Cursed Merfolk to help me keep pace with heavily aggro decks, making closing the game in time easier