mtg alchemist cards Magic The Gathering - Thermo-Alchemist (147/205) Mint / near mint condition trading card Alchemist's Gift - Core Set

A good reason for going mono-black is that black can cover almost all bases well (except artifact destruction)

That means fantastic draw power and survivability from The One Ring and The Great Henge, but also powerful creatures to swing with, like Avacyn, Angel of Hope and Sigarda, Font of Blessings that also protect your board

For 1 mana, the circles controller can prevent all the damage dealt to them by a source of their choice this turn

Barrenton Medic Barrenton Medic is an alright way to prevent some damage against either you or your creatures

These can be a great option for low-color decks playing in tables where restricting landsas opposed to destroying themis the preferred option