Cavalier of Dawn

The white entry in a five-card cycle that gave each color a three-pip creature stapled to color-appropriate value on both ends of its life, and the mono-white one commits hardest to the theme. The entry effect is disenchant plus removal in one clause: destroy any nonland permanent (creature, artifact, enchantment, planeswalker), which is white's answer-everything mandate compressed into a body. The compensation clause is the interesting part, because it isn't a downside so much as a governor. Handing the opponent a 3/3 Golem means the removal is never free; you trade one problem for a smaller, colorless one, and the exchange only looks good when the target is worth more than a 3/3. That governor is what keeps a 4/6 with vigilance and unconditional removal from being oppressive. The death trigger closes a loop the cycle was clearly built around: the artifact-or-enchantment recursion pairs naturally with the whole class of value permanents white likes to sacrifice and rebuy. It also means killing this creature isn't clean removal for the opponent; it refunds a resource on the way out. Vigilance ties the package together, letting the 6-toughness body hold the ground it just cleared while still attacking, so the card defends the tempo swing it created rather than choosing between offense and the board it just reshaped.