Opalescence is clearly an enchantment deck build-around, which let you turn Replenish into not only a source of lots of virtual card advantage, but also a massive battlefield position that could easily dominate and end the game
A big, beefy body (9/9) with three notable keywords (vigilance, reach, trample) that allows you untap all lands you control when it enters if cast plus three strong activated abilities means youll always be happy to throw this fatty down especially if you can cast it early via ramp
In fact, this deck runs two different Sisu characters and both are strong for different reasons
There's no Avacyn Angel of Hope in the deck either, but the reprint in Commander Masters may do something to mitigate rising demand for this legendary Angel staple
There are, of course, a bunch of cards that I don't have much interesting things to say, and some whose jokes might fly over my head