(2021-03-19) If a permanent has +1/+1 counters and -1/-1 counters on it, they're removed in pairs as a state-based action until that permanent has only one of those kinds of counters on it
Like most Magic: The Gathering cards, the value of Web of Inertia depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Judgment)
It extends its own purpose, as well as that of your excess lands (which is extra important for aggressive strategies)
Mox Opal even gives the bonus of tapping for any color, unlike the original Moxen
For the past months, every card has been printed with a regulation mark that appears in the bottom left corner and has a letter
Sure, this can be an effective political piece if you can manage to convince oppoents to let you skimp on mana to deal with problematic permanents on board, but using this as the newest novel Sneak Attack may be tough