can you use proxy cards in tournaments mtg Ugin's Labyrinth - Custom Proxy for Commander Are proxy cards legal in

Can you imagine the carnage if you use it to cast something like Crackle with Power or Genesis Wave

The token will certainly die at some point, but the Equipment remains, pumping stats on low-cost creatures to provide value and stability during the late-game

[cards] Ponder Preordain Brainstorm Thoughtcast Thought Monitor [/cards] The deck is intentionally packed with cheap draw spells like [card]Ponder[/card], [card]Preordain[/card], and [card]Brainstorm[/card], as well as affinity-based draw like [card]Thoughtcast[/card] and [card]Thought Monitor[/card], to ensure those counters build up quickly

Agent of the Iron Throne is good in sacrifice decks