Dunland Chieftan
Forced: After Dunland Chieftain engages a player, discard X cards from the top of the encounter deck where X is the number of cards in the engages player's hand. Put the topmost Dunland enemy discarded this way into play engaged with that player.
What happens if you engage him in any phase other than the quest phase and there are not enough remaining cards in the encounter deck to fully satisfy his forced effect?
1. You cannot engage him either naturally or optionally regardless of your threat level.
2. You can engage him and must discard as many cards as possible, but you do not reshuffle the encounter deck to fully satisfy the text.
3. You can engage him and must discard as many cards as required, reshuffling the encounter deck if necessary.
4. Other
My question stems from the sentence in the rule book "An empty encounter deck only resets during the quest phase", but this sentence is in reference to drawing shadow cards, so I'm not entirely sure if it applies to Dunland Chieftan's forced effect as well.