How does protection work with trample?

Yes. If you attack with 7/7 green creature with trample, and they block with a 2/2 protection from green creature, it will assign damage equal to that creature’s toughness (2) to the creature, and the other 5 will trample over to the player.

How does Deathtouch work with trample?

A creature with deathtouch and trample only needs to assign 1 damage to each blocking creature before assigning excess damage to the defending player/planeswalker. So yes, a 3/3 with deathtouch and trample can assign 2 damage to the defending player.

Does trample work on defense?

Nope. Only an attacking creature with trample can assign combat damage to the defending player once the blocking creature(s) have been assigned lethal damage. 702.17a Trample is a static ability that modifies the rules for assigning an attacking creature’s combat damage.

Is trample noncombat damage?

See rule 702.19, “Trample.” 702.19a Trample is a static ability that modifies the rules for assigning an attacking creature’s combat damage. The ability has no effect when a creature with trample is blocking or is dealing noncombat damage. (See rule 510, “Combat Damage Step.”)

Does Deathtouch override trample?

Deathtouch does not hinder the use of trample. It has no interaction whatever.

Can Planeswalkers get Deathtouch?

Planeswalkers that are not also creatures have no interaction with Deathtouch. They just take damage and lose loyalty counters as normal. Planeswalkers are never treated as creatures, and they are never treated as players. They are a permanent type as different from creatures as creatures are from enchantments.

How much extra damage does trample do?

The active player could assign 1 damage from the first attacker and 1 damage from the second to the blocking creature, and 2 damage to the defending player from the creature with trample. Example: A 6/6 green creature with trample is blocked by a 2/2 creature with protection from green.