To get this going, you need a sacrifice outlet that produces colored mana, like Phyrexian Altar, and some sort of enabler, like Gravecrawler
Shark Typhoon Players who have been around a while, after making the obligatory Sharknado reference that I guarantee someone in Wizards R&D team is extremely proud of (I know I would be), probably found themselves thinking, Hey, isnt this a cross between Metallurgic Summonings and Decree of Justice? It absolutely is, and the fact that it is mono-Blue makes it extremely splashable
Dogged and Dynamic (Amber/Emerald) Dogged and Dynamic contains a ton of valuable cards and while it doesnt feel as strong as it should, it can easily be upgraded to a competitive level
This is a great way to punish opponents for casting cantrips in Legacy and large draw spells in Commander
Whenever you attack with one or more Birds, scry 2