Construction Crew

Defender
When Construction Crew enters the battlefield,
look at the top five cards of your library. You
may reveal an artifact or Wall card from among
them and put it into your hand. Put the rest on
the bottom of your library in a random order.
{1}: Until end of turn, target creature you control
assigns combat damage equal to its toughness
rather than its power and can attack as
though it didn't have defender.