Dwarf Construction Academy

{t} : Add {1} to your mana pool.
{r} : All dwarfs get +1/+0.
{g} : All dwarfs get +0/+1.
{x} : Search the top X card's from your library, if there's a an artifact card, put in your hand and the rest at the bottom of your library.
{p/r} {p/g} : Play an artifact card from your hand.