Yes, Zetalpa will deal 4 damage total to your opponent. During the first strike damage step, you will assign 2 damage to the blocking creature (assuming it has flying or reach) and 2 damage to your opponent. Since the blocker doesn't take damage, you'll do the same for the regular combat damage step.
No. You must assign lethal damage to all creatures blocking, before you can assign any damage to the defending player. You ignore any protection effects, or other damage prevention effects when assigning damage.
So if Everdawn Champion blocks Ghalta, you have to assign at least 2 damage to it (you can assign more, but not less). Then you can assign at most 10 damage to the defending player.
Does Zetalpa, Primal Dawn trample 4 damages to opponent if my opponent uses Everdawn Champion to block?
Thanks.
If I use Ghalta, Primal Hunger, it will deal 12 damage to my opponent if my opponent uses Everdawn Champion to block. Correct?
Thanks.
So if Everdawn Champion blocks Ghalta, you have to assign at least 2 damage to it (you can assign more, but not less). Then you can assign at most 10 damage to the defending player.
Hope that helps.