yugioh scrap cards OCG: SD48 - Synchron negate the attack yugioh scrap cards Bonus Support:

Once per turn, if your opponent activates a monster effect (except during the Damage Step): You can activate the following effect depending on whose turn it is

However, for more common cards or those with visible wear, the cost of grading might be more than the value it adds

Despite this I have rarely seen this be any thing other than decent

Her effect lets her fellow Amazonesses survive a battle that they would have lost

If a card that has mutate also has flash, like Pouncing Shoreshark, you can flash it in for its mutate cost since its an alternate casting cost rather than an activated ability

They really are not that much ($5$15, usually depending on the card), and they often come signed or with a cool sketch on the back