The value is certainly there, but can you afford to wait three turns after casting a seven-mana spell to get its full effect
Ill attach an example below
Then, when you're ready, you can transform him into The Invincible Iron Man for six mana (1U, 1R, 4C) who is a 5/5 Flying creature with Haste, who, at the beginning of combat on your turn, lets you put an artifact card from your hand onto the battlefield, and if it's an equipment, you may attach it to Iron Man for free
Pika Drive: 200 During your next turn, this Pokmon can't attack
This ability cuts off both life loss and life gain, allowing your life total to stay static (unless it gets removed)
If Wizards releases more sets with more shrines, you probably wont want to go beyond 30-35