A huge loophole in ArM's system is aimed spells. Like dropping huge boulders on people - no MR, plus a huge aiming bonus, means instakill against just about anything. But how to pull this off ? My troupe found one solution to this, but I'd like to hear input on the issue.
The guidelines for throwing rocks in Houses of Hermes: Societates only go to +15 damage. Do you think that's the most that can be done by a thrown rock ? I figured a thrown rock can do about as much damage as having a building collapse on you (+21), so settled for +25 damage. Is stopping at +25 damage reasonable, or can damage just be piled up more and more ?
The HoHS rules also say that throwing a tiny pebble is enough to do that +15 damage. THE PEBBLE OF DEATH !!!. Well, not in my saga. I added a house rule saying you need to throw something impressive to do impressive damage. Part is enough to do +5 damage, Individual can do +10, and add +1 magnitude to increase size for extra damage - so +1 extra size does up to +15 damage, +2 extra size does up to +20 damage, and +3 extra size does up to +25 damage.
With these house rules, I end up with the following spell:
Hurl the Giant Rock
Hurls a giant boulder at the target, up to 1000 cubic paces (10 meters by 10 meters by 10 meters) in size. Such a boulder does stress+25 to whatever it hits. The spell is aimed, bypassing magic resistance, and such a boulder will have an aiming bonus of +18.
(Base 5, +4 damage, +3 size)
Huge boulders aren't ubiquitous and are rather difficult to lug about. So the player came up with a three-part solution to this problem. First, he turns them into gems.
Rock to Gem
Changes up to 10 granite boulders (up to 10x10x10 meters each) or rocks to large gems.
The MuTe base 2 guideline+2 mags will turn a +3 size boulder into a +3 size gem, which is 10x10x10 cubic inches.
(Base 2, +1 touch, +3 moon, +2 group, +2 to gem, +3 size [10x10x10 inch/m])
Then, he bags them in a bag of holding.
Bag of Gems
MuTe 35 effect
(base 4, touch +1, +2 ring, +3 size, +2 extra reduction)
In the bag the gems are size 0.16^3inch, rather small. This is based on taking the MuTe spell Object of Increased Size spell as the baseline, which suggests doubling of all dimensions at base 4. We then take MuCo Pretenatural Growth and Shrinkage to imply that this doubles for reducing size, to /4 all dimensions. And finally, we allow each extra +1 magnitude to add another /4 factor.
Finally, he adds Harnessed Magic to his character's Virtues. To throw the boulders, he picks up the reduced gems from the bag and throws them on the ground around him, getting him same large gems at his feet. He then concentrates for a round to undo the Rock to Gem spell thus turn them into boulders. He thus has ten boulders to throw around in the following rounds.
This round-about way is needed because reducing their size directly or turning them to gems and reducing their size would require Ritual spells.
Rock to Tiny Gem
Changes up to 10 boulders (up to 10x10x10 meters each) or rocks into gems.
The MuTe base 2 guideline+2 mags will turn a +3 size boulder into a +3 size gem, which is 10x10x10 cubic inches. The MuTe base 4 guideline will shrink it by 4 in each dimension to 2.5x2.5x2.5 cubic inches. This spell uses the latter as the baseline and adds +1 mag to add the effect of the former. Note the gems are still rather large, and +2 extra magnitudes should probably be added for greater shrinkage as per above.
(Base 4, +1 touch, +3 moon, +2 group, +2 from/to gem, +3 size [10x10x10 inch/m], +1 change to gem)
So - does all this seem reasonable ? I'm especially concerned with how to pull off the Bag of Gems; the above solution does not appear too legit, with its iffy use of Ring duration.
How do you suggest going around throwing rocks ? Is there a better solution we missed ?