Narset of the Ancient Way is probably the best option: while she incentivizes casting spells over cycling them, her minus ability allows you to draw extra cards with the option to discard them to damage your opponents creatures, or to keep them and cycle them later
Now, the entire team of heroes shares a life total of 60
Gravity Blade Raging Tiger Next up we have Gravity Blade Raging Tiger, a 7-cost Blue event that reads: "[Main] Place up to 2 Characters with a cost of 6 or less at the bottom of the owner's deck in any order," and the Trigger ability of, "Place up to one character with a cost of 5 or less at the bottom of its owners library." This event is more expensive than Red Roc, and it is restricted in what it can target, whereas Red Roc can target anything
Since he's only a 2/3, you'll want to make sure you have some cards like Whispersilk Cloak or Demonic Embrace to make sure Varragoth can attack each turn, getting the most value you can from his ability
Humility This is one of my favorite Magic cards of all time