(12/8/2022) You can tap any untapped artifact you control to pay the cost of the mana ability, including an artifact creature you haven't controlled continuously since the beginning of your most recent turn
(If it would become untapped, remove a stun counter from it instead.) Whenever a creature deals combat damage to its owner, untap The Beast and draw a card
According to Wizards, half of zero is zero, and so was born the Prosperity/Cavaderous Bloom deck (or ProsBloom for short)
While her other abilities are probably less interesting, being able to bring creatures to hand and mill away unneeded cards or making a 4/4 rhino token to protect herself are both also worthy of consideration
A couple of standouts are Teferi, Master of Time who will quickly become BFFs with Sefris given a chance, and Enduring Renewal, which we can play out once we have a creature or two in play and ensure we draw straight through to our lands/noncreature interaction every turn thereafter
For five mana, you get a repeatable reanimation effect for enchantments and a fantastic protective anthem effect for Yuna and your Summons