It shuts down other effects as well - your opponents can't cast spells from anywhere other than their hands, so no casting spells using Madness, Plot, Mayhem, or a whole bunch of red impulse draw effects
It's vital to note that defensive power can be bypassed by effects that do not target a card
Por cada mulligan que haga tu oponente, puedes robar una carta
Once they run out, you will need to wait 12 hours for an Event Token to recharge before you can attempt any of the battles again
The way we loop the Hogaaks is, with a Hogaak in the battlefield, we use it to Convoke a 2nd Hogaak, and while it is on the stack, we sacrifice the original copy to the Altar before the 2nd copy gets into the battlefield, playing around the legend rule
This level of synergy makes this deck the definitive best option for any beginner serious about mastering the tactical underpinnings of the game