The Commander Deck version of Terra (Terra, Herald of Hope) has a power that activates whenever she deals combat damage to a player
Varolz, the Scar-Striped $5 Varolz is a really interesting enabler that turns a bunch of near-useless cards in your graveyard into more gas
Each Dominaria United Commander deck comes with a Collector Booster Sample Pack, which contains two cards: 1 Rare or mythic rare that can be traditional foil, showcase, extended art, and/or a borderless planeswalker 1 Traditional foil showcase stained-glass uncommon Your Collector Booster Sample Pack might contain a special version of one of the cards in your Commander deck or a card perfect to add to another Commander deck
I can see this being used to churning through whole decks and setting player up for a big payoff in the right build
While her Equip for free effect is good, shes totally priced out of most formats at six mana
Garth One-Eye, Inalla, Archmage Ritualist, and Derevi, Empyrial Tactician are all great examples of commanders who enable this style of gameplay
