SiegeDragomon
decagrams are fun to use in magic but ive never used a septigram >.<
When combining a Regular Heptagon with an obtuse heptagram and an accute heptagram you get a most powerful amulet of protection and 7 is one of the most frequently used numbers in religions.
at each point you can put each one of the original magical planets. It stands for the universe, it's 3 and 4 combined 3= Heaven and soul, 4= Earth and body.
I refrain from using any magic with seven of anything, seven adds power it's perfection.
Crystalinks.com
There are two forms of heptagram:
The obtuse form suggests passivity, contentment and attuning with nature and its forces; of healthy rhythms and normal sexuality; of balanced feelings and satisfied desires; of normal receptivity and awareness of the feelings of others.
The acute, active form suggests an outgoing interaction with nature's forces, making progressive use of them and directing sexual energy. It suggests strong feelings and strongly expressed desires; likewise perhaps, heightened sensitivity to the emotions of others. It is a symbol of the empath and the healer.