If damage would be dealt to another creature you control, prevent that damage. Put a +1/+1 counter on that creature for each 1 damage prevented this way.
When Heralds of the Shredder is put into a graveyard from anywhere, shuffle it into its owner's library.
![Heralds of the Shredder - Vigor [Teenage Mutant Ninja Turtles Commander]](http://tothetablebgc.myshopify.com/cdn/shop/files/679596.jpg?v=1776966697&width=1445)
