Not really contributing to the topic in any way.
For those who need an example of what contributing means:
Stating an opinion or (more preferably) any type of result from trying to incorporate Tsareena into a deck.
For further meaning of the word "contributing", please find the nearest available oxford dictionary.
In the spirit of making a contribution (mainly to avoid being called a hypocrite), I believe nest ball to be neccessary for reaching attackers and it searches the same stuff as level ball with the exception of steenee; from testing.