It turns any creature into a harmless 0/1 insect that cant do much of anything but sit there indestructibly
If there are relevant creatures that need to be dealt with, it makes sense to swap your Shriekhorns for Lightning Axes
The best Jund commander, Korvold, Fae-Cursed King, grows in a similar way but it draws you cards when you sacrifice things, which helps to replace the resources spent by sacrificing all your stuff
If that creature dies this way, its controller creates two tokens that are copies of that creature, except their base power is half that creature's power and their base toughness is half that creature's toughness
Both methods are great and, above all, fun
Fraternal Exaltation A Wedding Gift in Cardboard Form Year Made: 1999 Magic It Does: Has no gameplay functionpurely a celebration of a wedding