However, if you and your opponent agree that the cards are for casual, fun play, then using them is generally acceptable
The third, ostensibly protective mode is most useful at negating removal, but it can also be played offensively to swipe powerful combat tricks and Auras
If you are rocking a green deck that's up against a blue spell deck, this is a tremendous side-bar card to have on hand
There are many factors affecting the value and rarity of Pokemon cards, such as the set, edition, condition, grade, print run, and overall demand the last of which is the most difficult to determine
If you can time it right, with all players either being forced to use their mana on something else or being tapped out, its pretty good