Can i ask what the point of gambling for brain freeze was? it seems entirely unnecessary as you had just put the table under a silence and you would have eventually drawn it anyway through you sensei's top loop.
I believe you are correct that it was unnecessary. He should have drawn through top until he had an answer for Tormod's Crypt which can disrupt a breach line. They mentioned "getting the other combo piece" before the cards in library count gets too low, which kinda makes me think of Aetherflux reservoir which usually needs 17 cards left in library at the start of the line to generate over 150 life to hit each opponent once. But most Elsha lists are not on Aetherflux including the popular primer list. The deck mostly wins through brainfeeze or what we saw with blind obedience (which also works well with the Teferi + Displacer kitten line in the deck). He narrates over it, but Tormod's Crypt was used to exile CJ's Graveyard in response to Soul Partition and with the brainfeeze exiled he had to go for an alternative line, but frankly it's really hard to not win when your opponents are silenced, you have near infinite mana and can effectively put your whole deck in your hand haha. Gambling would have been fine after the crypt was gone, but I don't think it was the right move here. The red Entomb strikes again.