When you roll the chaos icon on the planar die, you get to untap all creatures that attacked this turn, giving you an additional combat step and extra main phase
There are a bunch of ramp and card draw creatures, too
The store sells mostly Magic supplies, boardgames, and Warhammer 40k supplies, and they have well-attended boardgame nights and paint nights on their schedule
Depending on the type, each set will normally have its own theme, either based around a particular fictional setting in the lore, or perhaps tailored to one particular mode of play, like the Commander or Modern formats
At the same time, the most played deck in the format was Mono-Red Aggro, which was extremely cost effective