Oath of Chandra

The clever part of this cycle was bolting a planeswalker payoff onto an enchantment whose first half already justifies the card on its own. The enters-the-battlefield clause is a two-mana, deal-3 removal spell in the Lightning Strike mold, except it fires the moment the enchantment resolves and then leaves a permanent behind: a piece of removal that clears the bar for a two-drop with no walkers in sight. That makes the end-step trigger pure upside rather than a tax you pay for an enchantment that would otherwise sit dead on the table. The recurring two-damage reach only fires on a turn a planeswalker entered, which keeps the engine honest: it rewards a deck genuinely built to resolve walkers rather than a token superfriends shell that runs a few and hopes. Because the removal stands alone and the drain rides on walkers you were already casting, nothing about the card asks you to pick a lane; it slots comfortably into the midrange and planeswalker-heavy builds that want early removal and late-game reach out of the same slot. Among the legendary Oaths that each pair an immediate effect with a planeswalker-triggered followup, this is the burn variant, and the one whose front half stands most clearly without the back. The two-damage-to-each-opponent clause scales where there are more seats to chip, since a single walker drop taxes everyone at once, but the design was built front-half first: make the removal worth running, and let the drain be a reason to keep the enchantment around.