Detective's Phoenix

The Phoenix template has always been about the graveyard as a resource: bodies that come back for a mana cost, again and again, until you run out of fuel or the opponent finds an exile answer. This one rewrites the recursion clause. Instead of a flat reanimation cost, the second life demands collect evidence 6, exiling six mana value worth of cards from your own graveyard to pay part of the bestow price. That trade turns the yard from an infinite refuel tank into a currency you spend down, and it means the card only comes back a limited number of times, however deep your bin gets.

The genuinely novel piece is what it becomes on the way back. A dead Phoenix that returns as a creature is old ground; a dead Phoenix that returns as an aura is not. Recast from the graveyard through bestow, it stops being a 2/2 flier and becomes a permanent buff, handing +2/+2 plus flying and haste to something already on the board, and reverting to a creature only if it becomes unattached. That bestow-from-graveyard loop collapses two distinct roles (a recursive evasive threat and a resilient anthem-on-a-stick) into one card, and the collect evidence cost is what keeps the second mode from being free. You either cast it cheap and early as a body, or you bank it in the yard and pay plus six mana value later to make a real threat much bigger.