Threatening Roar is particularly effective when your opponent has limited means of bypassing your monsters without attacking, but Frogs excel at utilizing Caius the Shadow Monarch, Raiza the Storm Monarch, and Dark Dust Spirit, which can diminish the effectiveness of Threatening Roar
The entire card (not just the border) + the red on the PSA label is even faded
Cards that convert resourceshere, creatures into Treasure tokensare staples of combos and other shenanigans possible in the format, so finding a home for Ruthless Knave shouldn't be hard
For example, there are around 114 cards in Blue and Green, and I have played all but 6
Drafters As a drafter myself, I've noted that interest in any particular set tends to wane after a couple of months when most formats are considered solved. Having a new set to draft is always welcome