(i had glitched altars where it killed me instead of the enemy and altars that killed nothing)
lol

PS=Bond.. plz fix altars since it gets gltiched 30 percent of the time and that is gay (well.. at least for me ..30percent)

i have not seen altar being used 546 times but still after months of playing i haven't encountered such thing you are speaking of.5

only thing i can think of is either mass tp right when this happens to another cleared out base (99% of the time you will fail)
or use the amulets of recall or whatever it is called with 2-3 heroes depends on how many units/heroes you have

but these 2 ways are so rare and hard to time that its meaningless even to try out.

you could try to get shitload of heroes or get all the heroes in ur team with ur base, so u could use more amu of recalls without a cd and spam the shit out of it so it wouldnt hit you
or simply get control of the map and see if the team that uses altar revealed the other bases (empty obviously), if not u tele there, then u tele to the 2nd team and the back etc. (thats if u are able to).

nonetheless shit is superbly hard to do so..

Added (2011-04-20, 12:00 PM)
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besides heres a thing i just found out

It probably does work, but the tooltip is wrong

also for that tooltip probably sometimes the optimizer messes up randomly and just f's with tooltips of somethings. no idea why but it doesnt happen often which is good. in i think 3.5 holy light tool tips were completely blank becuz of it..
notice anymore like that let me know.

:/ well if you don't like that then I wish for a new gold making spell, the one like pillage except for it should work on units and buildings.. I think that would be a cool spell..