The end result is a deck that is low to the ground and casts lots of spells per turn, swinging in each turn to chip down life totals and then closing out the game with a combination of burn and creature combat
Until end of turn, that player can't cast spells, you may look at the top card of their library any time, you may play the top card of their library, and you may spend mana as though it were mana of any color to cast spells this way
It makes a bunch of tokens, and gives you the impetus to sac them
Mayael the Anima likewise can start getting huge fatties off the top of your library straight into your opponents noggin
Effects that change the number of cards in your deck are not allowed
His second ability encourages you to play cards like Rise from the Tides, because those Zombies will enter swole