I dont know, but Ertai is a good example of a card that has actually gone in a different direction than youd likely expect
And with good reason, as the first few sets of the TCG featured extremely fun cards many of which powered the best decks from the game's early years as well as highly sought-after cards among collectors
With the ability to slow any game down to a crawl, taxation effects give you some breathing room to build your board and survive for a bit longer
Because of that, some players decide to take another route by playing defensive monsters such as Big Shield Gardna, Spirit Reaper, Legendary Jujitsu Master and Gravekeepers Spy which can better survive attacks
For collectors around the world, the fact they werent even available outside of Japan made no difference
The threat of open blue mana will make opponents hesitate, letting you dictate the pace of the game