Contrary to another review, the instructions are easy to follow and detailed.
1. Something
other than "pick a card" and may be more magical to a lay person since only 8 normal cards are used.
2. Packs small for practice, and it will need some, but no difficult moves.
3.
Inexpensive and worth buying.
4. I'm not familiar with other Oil and Water routines, but
this one is well thought out and looks great.