This is a good, all purpose, chant that can be used for just about any spell: Just adjust it slighly to suit what your planing on doing, or use it for the beginning of the spell or the ending.

Witches power burning bright, tarot, rune and blade,


Charge the spell, filled with might, here and now the magic's made.


Wave and tree, hedge and flame, strength of the elements gather here,


 bless this work and charge it well,  complete the spell now far or near.


Mystic Moon and Brilliant Sun, send your power  this way,


Gracious Lady, Mighty Lord, bless this charge that I lay.


Powers that are, powers that be, gather round this spell I cast,


empower my working three times three, send it forth to see it last! So Mote it Be!