In fairness, it's a very exclusive item, and the transaction is the most expensive Pokmon card ever sold
Two mana to clear the board is incredible value and makes Vanquish the Horde one of the better mono-white board sweepers
These counters cause you to lose one life per counter during your upkeep, so you need either life gain or a fast win condition to get the most out of this
Along with that, they also double any enter the battlefield triggers you have, while stopping your opponents from having any at all
If youre playing Thragtusk, beating the aggressive decks is generally very easy (you have to do more work, but that work isnt difficult), and when both players have Thragtusks, games almost always go absurdly long
This is the hallmark of a powerful card that you need to always be expecting