As for the new Nami, On Play, you can give your Active Leader a -5,000 Power reduction to draw a card
(A so-called state-trigger , which is what Garruk's first ability is, does not trigger again while its previous instantiation is still on the stack
You can splash anything in green ramp but the only thing I ever really want to splash is red
In the interest of removing the least-fun elements of the self-bounce decks, Hopeless Nightmare is banned
Here is an example of what your mana curve should look like: 1 Mana: 12 cards 2 Mana: 78 cards 3 Mana: 56 cards 4 Mana: 34 cards 5 Mana: 23 cards 6 Mana: 01 card and 17 lands
You wont be as incentivized to play the remaining enchantment removal like Seal Away and Ixalans Binding with Cleansing Nova in your deck, but theres no harm in having the versatility to destroy all artifacts and enchantments as well if thats necessary