Blood Age General

A tribal anthem folded into a repeatable activated ability, aimed at the narrowest possible slice of the battlefield: Spirits that are already attacking. The tap cost tells you where this belongs. It sits back to buy the boost, so it can't join the offense it's pumping and can't hold the ground it left open, which means the body wants a wide board of other Spirits doing the swinging while it stays home. The pump lands each turn only if you keep committing attackers to the red zone, so the effect scales with a go-wide plan rather than a single threat. That it grants only +1/+0, and only to attackers, keeps it firmly in aggressive-tribal territory: no toughness to add, no help on the turns you aren't swinging, nothing to break a board that has ground to a stall. This is the kind of common-rarity support piece printed to give a Spirit aggro shell a way to close from a wide board without spending a card, since the boost costs nothing but the tap. It fills the anthem role for a tribe whose payoffs otherwise skew toward evasion and flash. Outside a dedicated Spirit build it does very little; inside one, it's what converts an already-committed attack into the extra points that finish a race.