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Constellation — Whenever an enchantment you control enters, target creature gets +1/+1 until end of turn.
A constellation ability triggers whenever an enchantment enters the battlefield under your control for any reason. Enchantments with other card types, such as enchantment creatures, will also cause constellation abilities to trigger.
An Aura spell that has an illegal target when it tries to resolve doesn’t resolve and is instead put into its owner’s graveyard. It doesn’t enter the battlefield, so constellation abilities don’t trigger.
If an enchantment creature enters the battlefield under your control, Pious Wayfarer’s ability can target it.
