If that sounds like a lot of work, well, your reward was an insanely detailed summon animation in which the Knights of the Round would appear one by one and then all together decimate your opponent, killing almost anything in the game in a single summon, and most things in two
Pack Wars turns opening packs into a game itself
But, again, the two off color kickers drop its playability in Commander, so it's less likely to get played in that format, although if you are running the colors this is a very strong option there, very strong
Pact of the Serpent With Pact of the Serpent you may draw, or make another target player draw cards equal to the number of creatures they control of a chosen type
When these battles come up, the Bant player has the clear advantage, as he or she is more likely to play the first Aetherling and likely to have more mana to devote each turn
The second ability intrigues and terrifies me all at the same time