With Pyrohemia in battlefield you can control the game easily, and there's also Rite of Passage giving you offensive power and more toughness for your creatures to endure more damage
Giving your other characters Resist +2 during the challenge can allow them to hit without taking as much damage themselves
Lastly, the kegs are also vintage/legacy types that cannot destroy enchantments
And because Slivers are so powerful, they've been a popular Commander deck archetype ever since the format was first created
You can activate Skill Drain after paying 1000 life points, which allows you to negate the effects of all face-up monsters on the field
But, since they've sold out, you wont find Secret Lair drops at the same price as youd find them directly from Wizards of the Coast ( standard $30 nonfoil, $40 rainbow foil ), with most being listed anywhere between $80-$150 or above