Any other mana you add during combat will still be lost as normal when moving between steps of combat
If you do go RB Goblins, Grub, Storied Matriarch and Grubs Command are two really nice pickups
(6/18/2021) Count the number of creature cards in your graveyard as the third loyalty ability resolves to determine how much life each opponent loses
Even if these cards aren't worth double-digit dollars, they are still powerful and interesting cards that often appear in Constructed decks, which is more than enough in many cases
If they have any sacrifice outlet or discard outlet, let the sabotage commence, otherwise you can initiate self-destruction with an instant-speed edict like Tergrid's Shadow and sacrifice the two best creatures instead of their worst
Verge lands - This set included Willowrush Verge, Bleachbone Verge, Sunbillow Verge, Riverpyre Verge, and [card[Wastewood Verge[/card]