So this is the short simple version, and will only tell you how to recognise them. If you have the skills to deal with a pillar yourself, I would suggest reading the full translation
{tabs First Rune}
Top (1st) Rune - Strength of Pillar
This first set denotes the strength. In ascending order from left to right.
{tabs Second Rune}
Middle (2nd) Rune - Power required to kill it
The next runes denote the type. There are four pairs for each summoning magic, the first rune is the simpler form of magic whilst the second is more complex.
Unliving
Must be healed, deal with it within 10 minutes or it escalates in power. Tarantula Healers know how to deal with this pillar.
Ancestral
Must be dismissed by Incantors
Demonic
The power must be drained, Warlocks are able to do this.
Elemental
Must be controlled by an Elementalist.
{tabs Third Rune}
Lower (3rd) Rune - 'Other Effects'
Denotes any additional effects. Honestly, we don't know much more than the translation, so best of luck.
Explosive, magical damage - not very powerful
Translocation
Transfer of information
Shapes earth into supporting structures
Augmentation of Golems
Cycle of energy
Transfer of energy
Extremely dangerous. Really. Have a healer about 31ft away, in a sprint pose. Has been seen to reverse channelling effects upon pillars expiration, rending the pattern of the healer involved in destroying the pillar, amongst other possible effects.
Note: Teleportation
Some pillars have demonstrated an ability to transport objects/people who are not of the Guardians forces away when carried by this minions. Avoid leaving unconscious bodies by the pillar if at all possible.
{/tabs}