As far as strategy goes you want to notice that this card may be metal type but it does not need any metal energy cards, so you'll want to have this in an electric deck for sure
If you are active member or user of one of those marketplaces, you may have a good sense of what things are selling for but you will only have visibility into the groups or streams that you actively participate in leaving a lot of unknowns
Search for Blex is also another reason to go in the Insect and Spider route, because creatures with those types often like the graveyard, and Search for Blex can help you there
Its a great card, and one that your opponents always need to be wary of
When The Ur-Dragon does eventually hit the board, it turns the rest of your Dragons into powerful draw engines and threatens to put some of Magic: the Gathering's most devastating threats on the table
Maleficent, Mistress of all Evil 3