There is also a detent mechanism to lock it in the open position
That means if someone casts a ten-mana spell, they are going to be milling ten cards on their next untap step
No one can try to destroy the creature you sacrificed to prevent you from casting this spell
Urtet isn't super powerful, and you can definitely get blown out by an overloaded Vandalblast, but I'm really happy that we now have a viable Five-Color Myr commander in the format
The reason why Blossoming Tortoise is so high on this list, however, is that its likely to appear in Pioneer extensively at least for a period of time
Hes really good at holding equipment such as Sword of Hearth and Home or Umezawas Jitte to get extra triggers when he deals damage, but you can also use him to tutor up Skullclamp in your tokens deck and then immediately equip it to him to draw four cards when he dies