1) Summoned units don't use the Ancient classification. Ancient is used for Night Elf buildings.
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2) The Spirit Wolf you placed on the map isn't Summoned. In order for it to be considered Summoned you would need to cast it from the Feral Spirit ability.
3) The reason the ability doesn't work on ANY of these units is because it's only targeting unit's with the Ancient classification. Since none of these units use the Ancient classification, it won't target them.
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The Aura should work on everything if you just use the default values. If you want it to only work on the Wolves then set their Unit - Classification as Ancient.