The minimalistic design makes it easy and economical to print as many copies as you need
Keeping in mind that you will most likely Summon them from the Graveyard with "Tri-Wight", other low level Normal Monsters and cards to mill them from your Deck can be extremely useful, like Lightsworn monsters or "Card Trooper"
"Predaplant Triphyoverutum" can negate Special Summons from the Extra Deck, gains the original ATK of all other monsters with Predator Counters, and can revive itself from the GY
In that scenario its very nice to be attacking turn two with a 2/3, while you opponent is sitting there with an 0/2 Ornithopter or a 1/1 weenie
Still, you'd better believe I'll be hoping to crack open one of these in every booster pack I open
These cards are especially important to get players out of bad situations when their combos are interrupted