Trynn & Silvar are an absolute home run and my pick for top commanders of 2020
Despite not being categorized, they are still card effects so still behave as suchcards that are unaffected by card effects are still unaffected by them, they can be negated, etc
It is also one of the more commonly hard cast things you play in these lists being cheap and not that colour intense
The votes are cast in turn order starting with the player who controls the voting effect, and the votes are tallied once all players have voted
Protection from everything might not mean much on a 10-drop creature like Progenitus, but granting that same level of protection to a player for a full turn cycle is down-right silly, and exactly the reason you see The One Ring in just about any format where it's [questionably] legal
It's also worth noting that each booster pack has five cards instead of the ten included in English boosters, and booster boxes contain 30 boosters, not 36