Getting to draw a card whenever a 4+ power creature enters is great, and in many EDH decks, youll get this benefit just by playing your commander
Its essential to at least have blockers around from early in the game, lest you become the soft target that the stronger players farm for easy value
With Smothering Tithe in play, this makes Bennie Bracks, Zoologist incredibly effective at drawing cards
Cards in the wildcard slot can have any rarity, from common to mythic rare
We've also got Brushfire Elemental, which is technically a 1/1, but, with the help of a single fetch land and its landfall ability, can turn into a 5/5 on Turn 3
It has the weakness of many white card-searching cards that your foe has to have more lands than you