The Battle decks are some sort of theme deck that comes with 60 cards and that can, theoretically, be used to play off-the-self
This can happen if the target becomes illegal in response or if it simply goes away
Once you choose to gain life using Earth Kingdom General's second ability, that ability won't trigger again that turn
There is a special version of a staple card in MTG Commander decks, Sol Ring, depicting Valstrax from the Monster Hunter series
Honestly, the army of snake tokens usually ends up being the true threat, anyway
Rats reward you for going wide and going low to the ground and because most of the archetypes best cards are cheap, its one of the friendliest decks for a new Commander player to build