Overall, Bruna is the best Angel commander in MTG for players who value inevitability and sustained board presence
While Mox Amber does require you to have a legendary creature or planeswalker in play to add mana, given the nature of Commander and the huge number of legendary creatures and planeswalkers Magic has been printing lately, it is very easy to activate
Cards make their presence felt as they enter the battlefield these days and dealing with them after resolution is usually a lost cause
These cards are the bread and butter of Modern storm deck builds, and they are practically a necessity if you try to do a storm build in Commander as well
The world has "regions" called Inklands
Also, should you wonder pick from a booster pack obtained by a player playing in another language, you can obtain the card in the language of the player you picked from