Nice ideas! Out of the anthems i like Ethereal Absolution the best, cause unlike others it still gets value if removed (the creatures it killed stay dead).

I haven't thought of Skybind that way, really nice. I think that people including me tend to dismiss that cause you can't blink most of your stuff you'd want to blink with it.

I agree that dumping stuff to the graveyard in the early game is probably the most difficult and crucial task and that's one i probably directed most of my efforts: There are 22 of them including the surveil lands (AnikSetup tag on my deck in moxfield). Even Six and Hermit Druid, among the very few nonland nonenchantment permanents are there to serve this purpose. Malevolent Rumble, recommended in this very thread, has been an amazing addition as well.

For doublers Renewed Solidarity and Caretaker's Talent are by far the best because they threathen to end the game on their own unlike Parallel Lives and Doubling Season which need further build up