TL;DR: If youre playing blue in Commander and own a copy, you should almost always be playing Mana Drain
The worst Ive ever had was a single card that was listed as Near Mint and arrived looking more in the neighborhood of Lightly Played. You take that as a risk, but you get a huge variety of sellers and the prices that come with that level of competition
Gaining life every time we ping our opponents is a great way to put the game out of reach entirely for them, and can ensure that we cruise to victory
And if you're seated at an unusually savvy table, you could always find a way to pump Esper Sentinels stats to make it even more back-breaking
Hopefully, the barrage of spoilers, whenever that happens, wont be too much to handle
This gave the players who discovered the quasi-glitch in Magic Online a massive advantage by activating the Grim Monolith's companion abilities that do not untap in the untap phase