Kami of the Honored Dead

Defense here comes from an unusual angle: rather than reducing or preventing harm, the lifegain trigger fires on every point that lands, turning blocks and burn into a steadily replenishing buffer. A 3/5 flier was already a frustrating thing to attack into, since most aggressive creatures of its era could not punch through five toughness profitably; making each of those wasted swings pad your total only widens the gap. The trigger reads any source of damage, so combat, direct burn, even your own effects all feed it, which is rare for a creature priced this high to ask so little in return. The Soulshift 6 is the lineage piece: it ties the card to the Spirit recursion chains white leaned on in this era, recovering one of the larger members of the family when this one finally dies. That return clause gives the body somewhere to go after it falls: it is not a closer and it does not generate pressure, but it is built to absorb, attrition, and hand back resources, the kind of late-game wall a midrange Spirit deck wants holding the air while its graveyard does the accounting. The seven-mana cost is the honest restriction on all of this: by the time you can deploy a flier that gains life off contact and refuels your hand on death, the game has usually decided whether you needed a defensive anchor at all.