Stacking is the act of placing multiple players or Creatures on a single square by use of a ladder, hole, staircase, ramp, or even a congested doorway.
After 2009 Autumn´s patch it´s possible to stack on a player anywhere on Optional PvP worlds. To do this you have to walk 2 times within 5 seconds in the tile in which the player is, the first time you will snap-back if you walk for a second time within 5 seconds you will be stacked.
There are some restrictions with the stack system:
- Area spells will affect all the stack.
- Direct attacks (melee, physical damage, non-area runes and attacks such as icicle, fireball, and all the strikes) by default will only affect the one who is at the top of the stack.
- The player on the top of the stack will be the one who was first on the tile.
- The actions of the top character are not limited.
- All the other players in the stack:
- cannot use any attack spell (i.e., area spells, strikes, waves, beams, etc.),
- can use only direct attack runes, but not area or field ones,
- cannot cast Mass Healing or sio another player, but can use UHs on them and heal with exura,
- can use his/her weapon in hand,
- can use support spells, summon spells, tools like a rope, a melee weapon to break items, make runes, etc.