Its a bit costly at 3 mana and 3 life, but you have almost no restrictions on your target or timing, making it a great catch-all
However, an MP sale at $145 sets a high benchmark, with an NM copy setting an upper limit with a sale of almost $245
Despite the simplicity of its effect, what makes Polymerization so good is that it can take fusion materials from either the available board or from the user's hand
When we were buying big cards for this series, we paid just under $20,000 for this
The Magic version is also a fairly interesting card, although you'll need to figure out a way of keeping it supplied with energy
Aside from fixing with reasonable dual lands, the lands here give little bits of utility and value and you have a few copying abilities to pull in the land-based weapons from across the table