This deck looks to combine disruptive creatures such as Leonin Arbiter, Thalia, Guardian of Thraben, Thought-Knot Seer, Tidehollow Sculler, and Wasteland Strangler with the ability to flicker creatures in order to make continued use of their enters-the-battlefield effect. The creatures in charge of that are Eldrazi Displacer and Flickerwisp. In fact, Eldrazi Displacer, Flickerwisp, and Wasteland Strangler can combine to form a lock of sorts, provided that you have sufficient mana. Because of its disruptive elements and its ability to close out games with creatures, this deck is very strong against combo and control strategies, and the Eldrazi additions have maded it more potent against aggro and midrange, which was a glaring weakness of most Modern attempts to replicate the Legacy Death and Taxes archetype.
Sideboarding Against This Deck

This deck has two major weaknesses: one is that most of its disruption is aimed at individual creatures or noncreature spells, so a fast start from an aggressive creature deck that puts multiple threats on the table (such as Affinity, Elves, Merfolk, or Zoo) can overwhelm it. The second is that it actually takes the deck some time to put an opponent away, so it can be ground down using attrition tactics. BG/x Midrange decks are a traditional nemesis of this deck for that very reason.

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