And from time to time, WotC makes a cool commander that buffs wraiths, only for players to find that there are only so many playable wraiths to begin with
Once per turn, If you control a co-linked link monster, (Quick Effect) you can target 1 card your opponent controls, negate its effects until the end of the turn
Some of the most popular formats include Standard, Modern, Legacy, and Commander
Good cards are valued around 70-85% of Near Mint and are popular with collectors who don't need a mint copy
The water-savvy Trainer helps these two lower meta cards find some interesting usage but are they really worth it
That's not it's only viable way of being used though - It can also be used to help with synchro plays by special summoning a Witchcrafter monster from the hand to then use it as a synchro material