mtg commander sliver deck EDH Deck Hivelord 100 Magic Cards Custom Slivers Sliver Kindred 5 Color Sliver Hiverlord makes all of your slivers indestructible SLIVER Ultimate Edition Commander Deck

I've kind of already answered question 2

Since, Beledross Witherbloom is such a fundamental cog in the deck with Scion of the Ur-Dragon ramping extra lands and having ways to untap all my land to make a TON of mana became a fixture of my deck

If that wasnt enough, whenever Edgar Markov attacks, you get to put a +1/+1 counter on each vampire you control

They are Commander Classics with the Maze in 75,021 decks and the Haven in 14,248 decks at EDHREC

Each Set Booster contains 15 Magic cards, 1 Art Card, and 1 token/ad card or card from The List (a special card from Magic's historyfound in 25% of packs), including 26 cards of rarity Rare or higher (2: 34%

Blue Choking Tethers isnt really a removal spell