Loamcrafter Faun

Creature — Satyr Druid

When this creature enters, you may discard one or more land cards. When you do, return up to that many target nonland permanent cards from your graveyard to your hand.

You don't choose targets for Loamcrafter Faun's ability at the time it triggers. Rather, a second "reflexive" ability triggers when you discard one or more land cards this way. You choose targets for that ability as it goes on the stack. Each player may respond to this triggered ability as normal.