Clones, copies and having more than one of in a singleton format will always speak to me, and clearly speaks to others, or Sakashima of a Thousand Faces would see less play
Assuming Azlask's controller has a plethora of creatures on the board, the defending player will be forced to sacrifice the creatures they have on their board
But raising the floor of an effect thats already got a good ceiling is always important and its always a great flex when you find ways to use a card that your opponents hadnt even considered
It is one of those generic looking support cards that could have tonnes of applications in tonnes of different places for a whole host of varying reasons
Competitive players memorized complete card pools, and deckbuilding felt manageable even without digital tools
At best, you're getting an Ancestral Recall on a 6/6 with first strike