Price$4.50 – $17.15
Buy on TCGplayerSphere of Safety
Enchantment
Legal Salt 1.17Rank #669
Creatures can't attack you or planeswalkers you control unless their controller pays 
for each of those creatures, where X is the number of enchantments you control.
Why is this card good?
Sphere of Safety is one of the best "soft Fog" effects in Commander, but only in the right shell. Each enchantment you control taxes attackers, and in a heavy enchantment deck that tax quickly becomes unpayable — opponents simply give up attacking you and turn their armies elsewhere.
This is a staple in enchantress/pillowfort decks: commanders like Sythis, Tuvasa, Estrid, and Eutropia naturally flood the board with enchantments, so Sphere routinely demands 5-10+ mana per creature. Pairs beautifully with Ghostly Prison, Propaganda, and Ensnaring Bridge–style stax to make you the worst possible attack target while you durdle toward a combo or alt-win.
The catch: it scales off enchantment count, so in a deck running only a handful of enchantments it's a near-dead that taxes a measly 
-
. Don't run it as generic protection in a non-enchantment deck — it's a payoff, not a stand-alone defensive piece.
Also note it does nothing against burn, mill, or combo, so don't rely on it as your only line of defense.
that taxes a measly -. Don't run it as generic protection in a non-enchantment deck — it's a payoff, not a stand-alone defensive piece.
Also note it does nothing against burn, mill, or combo, so don't rely on it as your only line of defense.Related cards
Propaganda
Tax-to-attack enchantment, same Pillow Fort effect with flat cost.
Ghostly Prison
White enchantment taxing attackers, classic pairing in Pillow Fort decks.
Norn's Annex
Taxes attackers in mana or life, complements Sphere of Safety.
Windborn Muse
Creature version of Propaganda, taxes attackers.
Crawlspace
Limits attackers to two, defensive Pillow Fort staple.
Archetype of Endurance
Alt protection; though Sphere thrives in enchantress builds.
Sterling Grove
Protects and tutors enchantments, boosts your enchantment count for Sphere.
Enchantress's Presence
Card draw engine fueling enchantment-heavy decks that maximize Sphere's tax.
Printings (8)
Played by these commanders
Aminatou, Veil Piercer100% of 1
Kynaios and Tiro of Meletis100% of 1