There is some interesting synergy to be had here, as if you have three poison on your opponent, you probably have some Toxic creatures in play, in which case tapping down a blocker is going to be increasingly problematic for your opponent
There are other creatures with Evoke, but I tried to avoid ones that require me to discard a card and ones that have two of the same color in their Evoke cost
Gaining control of target player's turn[] While black is the color that can do it in the color pie [1] , with Sorin Markov and Worst Fears, this effect was most well-known on two colorless cards: Mindslaver and Emrakul, the Promised End
While it doesn't overly interact or offer synergy beyond being an artifact with your other cards it is one of the best stand alone cards
Mostly you just want to burn things out the way, pay your mana once and be done with it