Elroin Lightningspitter

When Elroin Lightningspitter enters the
battlefield, Cast 1 creature that requires
{x} combined {1}/{2}/{3}/{4}/{5}/{6}/{7}/
{8}/{9}/{w}/{u}/{b}/{r}/{g}/{c}/{b/g}/{b/r}
/{g/u}/{g/w}/{r/g}/{r/w}/{u/b}/{u/r}/{w/b}
/{w/u}/{p/b}/{p/c}/{p/g}/{p/r}/{p/u}/{p/w}
"destruction comes with weakness"