Now the wickerfolk known as the Swarmweaver roams the House, seeking other survivors for its swarm of corpse-bees to colonize, providing it with a temporary reprieve from its constant infestation
If you can pair this with a Thought Vessel or a Reliquary Tower, you could be looking at 10+ cards in your hand with an empty battlefield
Vivi Ornitier, for instance, is only selling for around $140 right now
The symmetrical board wipes are Wrath of God, which destroys all creatures, Decree of Pain where you can either cast it to destroy all creatures and you draw that many cards or cycle it to give each creature -2/-2 until the end of turn, and Akromas Vengeance which destroys all artifacts, creatures and enchantments
When this card leaves the field, you may add any remaining Xyz material monsters to your hand instead of sending them to the graveyard