Huaxia had too many ways to solve Patrick's problem.
But when it came down to choosing seriously, there were many considerations, and first, the Buddhist methods were ruled out because they weren't cool enough and not persuasive.
The Taoist stuff could work, just setting up an altar and drawing a talisman would do, but there were requirements for such things. Gao Guang had wanted to draw the talisman on the spot, but drawing one required yellow paper, cinnabar, and Gao Guang had to be skilled enough to draw it properly—it wasn't something you could just look at and emulate; it required practice.
Gao Guang was too lazy to practice. Fortunately, with the development of the modern internet, you could find any talisman with a quick search online, but the problem was that Patrick wasn't a fool. If you just downloaded an image and printed it out to fob him off, he might also know to search online and do a comparison, which would give the game away.