When you reanimate Archon of Cruelty, your opponent must sacrifice a creature or planeswalker, discard a card, and lose three life, you then get to draw a card and gain three life
While most of them have decent value on their own, some of them have synergies that are important to pay attention to
6 Enchantments Some battlefield enchantments have activated ability costs requiring you to tap your creatures to trigger specific effects
Jaheiras Respite Ramp tacked onto Fog has to be one of my favorite combination of abilities ever stapled together
Guardian Project will draw a card every time a creature enters the battlefield, with some conditions
For example, Danitha Capashen makes it easier to cast Equipment and Auras, and her trio of keyword abilities makes her a great place to put them