A-Soul of Windgrace

The recursion is the spine of the whole design: reclaiming a land from any graveyard on entry and again on every attack means each swing rebuilds the manabase while it advances the clock, and because it pulls from opposing yards too, it quietly punishes anyone whose deck cracks or discards lands. What makes the three discard abilities cohere is that they share a single fuel line, the spare lands the engine is already producing, and each one answers a different pressure: green converts a flooded land into a life cushion, red turns it into a fresh card, and black spends it to make the body indestructible through the end of the turn. That last mode is the one worth reading carefully, because the tap is written into the resolution, not the activation cost; you can pay for indestructibility with the creature already attacking or already tapped, and the effect taps it afterward if it wasn't. The protection is therefore cheap on tempo in the exact moment you need it, when a removal spell or blocker is aimed at a creature that has already committed to combat. The "A-" prefix marks a version of the card whose numbers and text were retuned for a digital-only environment rather than paper, and the tuning sharpens the same idea into one four-drop that refuels itself, sculpts its draws, and survives a targeted answer, all off resources the lands deck was going to burn regardless.