mtg 15 card booster pack Magic the Gathering Game M15 2015 Core Set Manufacturer-Sealed Foretell and Boast Dark Ascension Booster Pack

Tap: Add one blue

Bulwark Ox Bulwark Ox is easily my favorite mount card from Aetherdrift

You would be able to easily answer at least the first question

Due to the social contract when playing Commander the idea that things should be fun, and games should be closed out as soon as possible mass land destruction is generally frowned upon

Cards like Veil of Summer, Spell Pierce or Flusterstorm make your counterspells useless, and also Teferi, Time Raveler is still a popular card

That ability can help you bounce back after a board wipe, since the creatures you use to crew your Vehicles are gone, you can surprise your opponents with an attack out of nowhere