I feel Wizards of the Coast regularly highlights that having ways to remove lands can matter, but it seems a large portion of the player base doesnt utilize this tool often enough
Modern is probably the most popular of the bunch, but they all have different ban lists and rules
Upgrades Unleashed is a Gruul precon with a focus on "modified" creatures, a new batching term referring to creatures that are equipped, enchanted, or have counters on them
Even though most of these cards have game-changing effects as soon as they drop, if you manage to live a turn, Red Roc was a great out
Perhaps the best place for Chained to the Rocks in Boros Aggro is in a balanced build, splitting the colors down the middle but avoiding double cost creatures like Precinct Captain and Ash Zealot
SpellTable (formally VirtualEDH ) independently launched in April 2020 as a way to continue playing the Commander format during the COVID-19 pandemic before expanding to other formats and joining Wizards of the Coast