If I have my hand of 6 cards and I play a Burn Offering trashing a card, I understand that I then would draw 7 cards for my next turn. What happens if on my next turn I play another Burnt Offering? Would I then draw 8 cards my next turn or is the 1 more effect always 1 more then the standard of 6 cards in your hand?
The extra card is only good for your next turn. If you play multiple Burnt Offerings in a single turn, only then do they stack.