Every collector, whether new or experienced, benefits from knowing these important details
Additionally, as much was as I would love for Hedron Crab to finally be viable in Commander, I dont believe the persistent milling trigger off of landfall would do a mill deck any good when two toughness means the crab is a casualty of something as simple as Pyroclasm
To get some of the best ETB triggers, you should cheat your green cards onto the battlefield with great mono-green cards like Natural Order, Pattern of Rebirth, Kona, Rescue Beastie, or Smuggler's Surprise
I've just found that I have no idea how to search for these cards in Gatherer or in MagicCards.info
While there is the occasional Tarmogoyf or Eternal Witness, almost every single card in greens top 25 generates a mana advantage or searches up the creatures or lands you want