I find this combo very effective for Silver I League. 90% of the time you'll win on high mana battle. For Low mana, you can play with Chwala or Flesh Golem(if available).
I was also able to go above 2000 rating with this lineup. You just need additional power to unlock Gold League.
It costs me around 480 DEC rental fee.
Will you think, this is effective to you?