The bounce effects from playing noncreature spells with it can protect your creatures and increase the number of ETB triggers you get from each card
It can ramp you too (bringing back fetch lands or other lands) and it can hit many of the great utility creatures youll be running
Ive written a lot about the foil extended art cards only available in the Sample Packs, and unless youre buying in significantly below TCG or Ebays listed prices, I cant tell you to buy these for long-term growth
It's certainly not as logical a progression as Phantump to Trevenant, and the trees remain somewhat more impressive from an artistic standpoint...but I'm overall glad to have these unusual things as our official Jack O' Lantern monsters, even if they prove to be our last
Prices spike for 1-2 weeks, then correct
Once per turn: You can send 1 "Gem-Knight" monster from your Deck/Extra Deck to the GY, and if you do, inflict 500 damage to your opponent for each Special Summoned monster on the field