Blue hates tapping out to draw cards, so Stroke gives them an easy outjust wait until the end of your opponent's turn, and give yourself a big ol' helping of
Oozes are great at multiplying and buffing each other up, with Biogenic Ooze being particularly good at both
It's fine to throw in a few powerful cards just because they're powerful - which is why Sol Ring has a reserved seat in pretty much every Commander deck ever - but usually the best result, and the most fun, comes from crafting a deck that's a specialised, synergistic machine
If you can keep the Conqueror's Flail equipped, youll never have to worry about a Counterspell again
There are scientific methods, and non-scientific ones, to help the basic MTG player differentiate a real card from the fakes