Stack Updates burn timeouts and don't allow blocks
Setup: Walking Throne (Rabbit), 3 x Hinterlands Sanctifiers, 1 x Ajani Pridemate, 4 x Hare Apparent on board.
As you play each additional Hare Apparent, the stack becomes so large that the enemy player burns timeouts just getting through the stack. They can't use "Resolve All" because each heal from the sanctifier changes the stack by triggering Ajani Pridemate, which forces them to click again. Even holding down the space bar has enough latency between request and response that the enemy player is forced to burn a time out. Eventually, they run out of timeouts and their inputs get skipped on your turn, preventing them from blocking.
This forces players who could ahve otherwise defended to lose the game.