If you have corners that meet the criteria of a 6, but you have a surface that meets the criteria of an 8 - your card would be a 6
That being said, lets go on an adventure
Perhaps, my favorite of all the fixed Timetwister was the original, Diminishing Returns
White Flare Consider
There's the odd bit of flair in type- or Pokmon-specific benefits to the gym leader cards, with one for each of the original Indigo League's eight leaders from Pokmon Red, Blue, and Yellow - Koga, for instance, lets you pick up an active Weezing card and its pre-evolution Koffing and put them back in your hand, making it a handy stalling or recycling tactic
The card is in excellent Near Mint condition with pristine front and back surfaces, clean centering, and crisp edges and corners on both sides