This easily makes his Planeswalker card Minsc & Boo, Timeless Heroes the most valuable Baldur's Gate 3 MTG card, and the most fun to play, to boot
It has some of the best removal in the format, plus plenty of interaction, mana generation and card advantage, to boot
It also serves as a ramp for you by doubling lands you control that tap for colourless mana, which is very handy in the right deck
If the table has been building resources for several turns, Valgavoths Onslaught converts yours into immediate pressure
Narratively, it takes place post-March of the Machine that left much of the Multiverse in turmoil, so many characters and creature types are not native to this plane
This means that cards like Lightning Greaves and Sword of Hearth and Home might keep you from saving a few of your permanents, but that's still better than losing everything