Because Skola Grovedancer's ability triggers when land cards are put into your graveyard "from anywhere," Skola Grovedancer must be on the battlefield immediately after a land card is put there in order to trigger. This means that if Skola Grovedancer dies at the same time as a land you control, its ability won't trigger.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.