Double strike and trample is brutal enough, but then you take into consideration that it can be cast for as cheap as and attaches itself immediately to one of those unblocked attacking creatures
Then when an enchantment arrives to the battlefield, this becomes a 6/6 with menace and deathtouch, so it has evasion and big size, and since it already goes into that deck, it has great synergy with itself
Because of white's lack of specific draw power, its few tutors may be included as well
Towns get paid off in two major ways (Travel the Overworld and Omega, Heartless Evolution), both of which are very high picks here
The card draw is a nice benefit of the true power of this class, turning your discards into damage and crushing opponents alongside cards like Artist's Talent and Monument to Endurance
Heir of Falkenrath 7.5 This is a great example of a good replacement for Putrid Imp