Hello everyone, I have some questions. English isn't my birth language so the rules aren't really clear for me. So firstly, I don't understand what they mean by " friendly creature" in the card "renewing fountain", do they mean all my creature except my mage? And if that is the case, for the "Eatherian Tree" does it affect all the creature in the arena (enemy and ally)?
"Friendly creature" means any creature controlled by you or another player on your team. Your mage counts as a friendly creature.
Yes, [mwcard=DNJ03]Etherian Lifetree[/mwcard] applies to all (living) creatures (and conjurations) in the arena, itself excluded.
Secondly, can I push the creature on the border of the arena? Or does it count as a lethal barrier?
The arena is surrounded by impassable walls. If you push a creature into one of these walls, it suffers an unavoidable attack of 3 dice. Not necessarily "lethal", but still damaging.
Finally, for the "Gate to hell" do I have to be on the zone to open it? And if yes, does it attack me too? And can my creature summoned by the Pentacle appear at the gate?
You do not have to be in the zone to open it.
It will attack you if you are within range.
Creatures summoned by the [mwcard=MW1J17]Pentagram[/mwcard] may NOT appear at the gate; only creatures that your mage personally summons may appear there. (confirmation requested)
Edit: The issue about pentagram creatures appearing in the gate's zone is, oddly enough, not in the rules supplement, though I could have sworn there was a clarification there. Am I just mis-remembering this? If somebody could confirm this, that would be great.