You can only use this effect of "Tasuke Knight" once per Duel
It does most of what a Fiend/Maggot does with their EtB effects and then it is better at staying in play, far better at blocking, enables raid, controls planeswalkers and is generally a pain in the arse
To start things off, lets check out the Forbidden/Limited List
This helps the likes of Charizard ex to do enough damage to KO Pokmon like Roaring Moon with no prize cards taken by your opponent
[464] [465] Footnotes Joint venture between Nintendo, Creatures, and Game Freak, [1] who jointly own the copyright, as well as the trademark in Japan, while Nintendo owns the trademark internationally, including in territories where The Pokmon Company International operates
Additionally, last year saw a whopping 19 million searches for the phrase Pokemon on the e-commerce site