Having multiple big bodies on a single card is all time value and a good win condition
The ability will trigger again during the card's owner's next upkeep
You can also draw your entire deck with Archmage Emeritus or Niv-Mizzet, Parun, but you'll need to make sure you use one of your bounce spells to return them to your hand so you dont accidentally deck yourself
2: Create a 2/2 blue Spirit creature token with vigilance and "Whenever you draw a card, put a +1/+1 counter on this token." 12: Target opponent chooses a permanent they control and returns it to its owner's hand
Tribal, aggro, and reanimator strategies are just a few of the directions you can take a Mardu deck
That's easy to pay in the later game, but in earlier turns, opponents won't often have a spare mana to prevent that card draw