If youre new to trading card games, this is a good place to start
It could be a good bonus, although I think all the other ones are more immediately impactful (fine, editor Nazis, of impact!)
She will always trigger from casting a Commander from the Command Zone, after all
Jump-start means You may cast this card from your graveyard if the resulting spell is an instant or sorcery spell by discarding a card as an additional cost to cast it and If this spell was cast using its jump-start ability, exile this card instead of putting it anywhere else any time it would leave the stack. Casting a spell using its jump-start ability follows the rules for paying additional costs in rules 601.2b and 601.2fh.
TYPE Ongoing Scheme ABILITY (An ongoing scheme remains face up until it's abandoned.) At the beginning of your end step, you may cast a spell from your hand without paying its mana cost
It works best with smaller enchantments with good ETB abilities and auras because you still have to pay for the card