Don't forget that you can use Necromantic Summons on your opponents graveyard too! I LOVE taking control of opposing Ulamogs!
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I personally like Necromantic Summons.
Shamble Back exiles a creature from A graveyard. That means you can target your opponents graveyard as well.
Just curious. Have you done much testing with this yet? I love reanimating stuff, so I am interested in how well it does.