Favor of the Woods

Three mana for an aura that pays you only when the creature it sits on blocks: this is a card built around a trigger you control on the wrong axis. The defending player decides when blocks happen, but the green deck wearing this aura is usually the one applying pressure, not the one sitting back to absorb attacks. The result is a lifegain engine wired to a defensive action that an aggressive green deck rarely takes on purpose, and a defensive green deck would rather spend three mana on a body than on a single creature's conditional gain. The cost structure compounds the problem: aura cost means the enchantment evaporates if the host dies, so even the player who wants the block is one removal spell away from a blank turn. Three life per block is a meaningful number in a vacuum, but it requires a creature good enough to keep blocking and surviving, and a creature that good would rather not be chump-blocking under an aura that does nothing on offense. What it amounts to is early-era enchantment design reading as incidental life padding for a defensive shell, in a color whose creatures are usually built to swing, not to stand still and collect.