While the others may affect the board in more significant ways, since a card can represent various threats at various times, drawing or discarding simply has more of an effect than even more seemingly powerful effects like dealing one AOE damage to your opponents board
Im Bernardo, and this is Epic Experiment , a series where we throw all common sense aside and experiment with some unusual strategies, changing how we normally build our deck
Plainswalk The affected creature cannot be blocked as long as the defending player controls a Plains land
Declare Attackers Step This is where you'll choose which of your creatures are attacking, tap them to indicate they're attacking, and specify if they're attacking your opponent or a planeswalker your opponent controls
On top of that, its not only a flying 3/3, but one with prowess, which means itll get bigger for a turn every time you cast a non-creature spell