Rule on friendly vs all creatures?

[cbalian]

My friend and I are going to play a Beastmaster vs Beastmaster game this weekend.  I was putting together my spellbook and if the card says "All" creatures does that mean All creatures (including my opponents creatures)? 
As opposed to I have other cards that specify "Friendly" creatures. I assume by friendly it just means MY creatures.

For example:

Tooth & Nail
All animal creatures melee attacks gain the Piecing +1 trait

If I cast that does it give his animals piecing too since it says all animals not just friendly animals?

Mohktari, Great Tree of Life
All friendly Living creatures in Mohtrari's zone gain the Regenerate 2 trait

If I cast that it would only allow MY living creatures to regenerate but not his.

[Fentum]

'All creatures' includes enemy creatures.

[Shad0w]

Friendly - Creatures controlled by you or your teammates.
All - Creatures controlled by a player.

[cbalian]

Thanks.  I figured that was the case, just wanted to double check.

Beastmaster vs Beastmaster game was a success and I won!   

That new bow pretty is pretty awesome.  5 dice of damage +1 piecing + bleed is pretty sweet for not having to spend any mana (after you summon the bow).

[Moonglow]

Shadow, are you disagreeing with Fentum that all creatures includes enemy mage creatures? 

Friendly - Creatures controlled by you or your teammates.
All - Creatures controlled by a player.

[Shad0w]

Shadow, are you disagreeing with Fentum that all creatures includes enemy mage creatures? 

Friendly - Creatures controlled by you or your teammates.
All - Creatures controlled by a player.

No my statement agrees with his.
All =  Creatures controlled by every player.

[Moonglow]

Sweet thanks - sorry for belaboring the point, for some reason I'd read 'a' as a single player.