One neat trick you can do is cast this green instant as your first spell in a turn, forcing your opponents to either waste countermagic on the Veil or consent to a turn where your spells cant be countered
Eldrazi Displacer and Thought-Knot Seer are both incredible on their own, but you can combine them with a few different cards to allow for an instant win condition
Unlike Red's impulsive take on this, this can always be played from exile and has no time limit as long as it's exiled
Punishing Damage: Whereas Incremental Damage is often triggered by your efforts, other forms hurt opponents whenever they make certain plays (Cemetery Gatekeeper, Harsh Mentor, Eidolon of the Great Revel, Zo-Zu the Punisher, Manabarbs), limiting their choices in what plays can be safely made as the game progresses
Based on the latest market prices tracked on TCG Stacked, Dimir Signet is worth about $1.71 USD
Moments Peace Moment's Peace is simple and effective