|If a creature gets within 5′ of the door, a large, shimmering hand of force appears in front of it. Depending on what the creature does, the hand takes different actions.
At first, the hand just appears between the creature and the door. The hand has a strength of 26. Creatures with a strength less than 26 may not move through the hand, buy may attempt to go around it with a DC 19 Dexterity (Acrobatics) check. The hand may also be dispelled with Dispel Magic with a DC 15 spellcasting check, or with any other mechanism that dispels or suppresses a level 5 spell.
However, if dispelled or circumvented, another hand appears. This one also has a strength of 26, and will make an opposed Strength (Athletics) check vs. the creature, moving it back 25 feet. At this point, it acts like the hand above.
If the second hand is dealt with, a third hand appears. This one will strike any creature that comes within 5′ of it. It attacks at +4 melee for 4d8 force damage. On a miss, a creature may pass it.
If the third hand is dispelled or circumvented, a fourth and final hand appears. This one makes a grapple check at strength 26 vs. the opponent. When the hand achieves a grapple, it holds the target in place for 1 minute. If the target tries to escape, the hand squeezes, dealing 2d6+4 bludgeoning damage.
A spell or other effect that can sense the presence of magic, such as Detect Magic, reveals an aura of evocation on the door.
A spell such as Dispel Magic cast onto the door will dispel a hand with a successful DC 15 caster check. If a hand is dispelled, the next hand that would come out will come out. A total of 4 dispels are needed to completely remove the trap. Any effect that suppresses magic at spell level 5 will suppress the current hand for the duration of the effect, and cause the next hand to appear. This ends the suppression effect.