You choose which one because you control the enchanted creature
Those extra cards can also help keep Nezahal, Primal Tide on your board for longer
With some changes to how these sets are handed and a few updates on what they have included in them, we decided to give this piece a bit of a revamp so we have all the accurate information you need to plan out your next Magic investment
Some of the sorceries from the Face the Hydra deck might also work, as long as your group is willing to interpret the word Heads as creatures and think of the Chaos Deck as being the Hydra. For example, Unified Lunge would read, Unified Lunge deals X damage to each player, where X is the number of creatures on the battlefield. And Disorienting Glower could be interpreted as, Players cant cast spells until the next time a Chaos Deck card is played . Similarly, you could include some of the sorceries from the Battle the Horde deck by swapping out the word Minotaur for creature. Consuming Rage would then read, Whenever a creature attacks this turn, it gets +2/+0 until end of turn
See, this wasn't something he came up with last second