I don't know if this has already been mentioned further back in the topic (I didn't really want to look though 16+ pages ^ ^') but doesn't Shard of Readiness sort of already grant the ability 'Swift?'
Obviously that doesn't stop ya'll from making your card (which is turning out pretty awesomely) as it doesn't really matter if some spells and creatures share the same abilities, I was just curios to see if anyone noticed.