Eriette, the Beguiler
Auras have always been a Johnny's promise and a Spike's trap: you invest a card into a creature, and one removal spell nets your opponent a two-for-one. This warlock inverts the entire proposition. The enchantment stops enhancing your board and becomes an eviction notice, converting a cheap Aura on an opposing permanent into a conditional theft that persists exactly as long as the Aura stays attached. Where Blue and Black control-magic effects like Control Magic and Treachery each cost a full card and a real chunk of mana to steal one creature, this body turns every subsequent Aura you cast opponent-side into another annexation, riding on enchantments you might have been playing anyway.
The mana-value gate is what tempers the blowout: you can only annex a permanent whose cost is no higher than the Aura doing the annexing, so bigger targets demand bigger enchantments. That same clause quietly widens the scope past creatures. Any nonland permanent an opponent controls is fair game, so an enchant-anything effect can peel off a planeswalker or an artifact, not just a blocker. Lifelink on a 4/4 body is nearly a footnote, but it signals the intended posture: attrition, not tempo. This is a design built to win by making your things her things and daring you to spend a card taking them back.
