Muldrotha, the Gravetide Muldrotha, the Gravetide is one of the most popular casual commanders and its easy to see why
Wipe Away staples split secondan echo back to how "interrupts" weren't something you could really react to the way we do with instant tricks todayto the most powerful version of bounce spell that can return even a land to its owner's hand
Theyre meant to be drafted along with the rest of the cards from your deck but are placed in another deck called the contraption deck. To put the Contraptions in the game you have to assemble them with cards that assemble a Contraption, which is most present in red, white, and blue
If you cannot end the game in time, then you do not meet the criteria for a win
However, you can solve this problem with Voltaic Key since it allows you to untap Time Vault, take an extra turn, repeat it infinitely, and basically win the game since your opponent will have no chance to play
Toss in a Mirkwood Bats or Mayhem Devil, and you've got a powerful engine to drain your opponents into oblivion