"Floods spot if empty" Which spot? Common sense would dictate that it is the spot the turtle is played in. Clarity in wording is the card designer's responsibility to make sure his point is understood the same by everyone.
On another note,
is the element with the most CC in the game. Why does it need more, and will this step on other cards like squid?
EDIT: for closer analyses
5|10 warrants at least a 6.5
casting cost. Along with the useful ability it's 6?
7|15 would probably cost 9-10
based on stats alone. With the upgrade bonus it becomes 7-9, but the ability is free?
Why is adding water blast a +0 cost to the creature?
A turtle is supposed to be defensive but 10|15 hp is too much. That makes it seem like it's some kind of robot (for all I know it could be) that fits into
or
. Steam machine has such high hp because it is a machine. You can argue that cannon turtle is also a machine, but besides steam machine, I feel
should be a more biological element.