Recently I tried Covenant of Steel, Sukrus, and Dagur... This is really powerful, if not broken combo because Dagur is untargetable, the Covenant of Steel takes 0 damage (easily can be unlocked). Sukrus can't be targeted, and if you play Eist's second wind ability with the deck, you can double dip the Covenant of Steel and Sukrus and very very easily royal decree or even renew dagur.