If the creatures are too much to handle, it's good to use the creature destruction effect, and if the battlefield is manageable, destroying all lands is the way to go
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I think that making it less-than toughness would keep to the Abzan theme without changing the card too much
The guide below preserves the complete eight-panel visual checklist while adding searchable context for each part of the set
On top of that, you can use several combos, like MTG 's Nuka-Cola Vending Machine and Krark-Clan Ironworks to generate infinite mana while proccing Ragost, or Magewrithe's Stone to manually untap Ragost before the end of the turn to proc its ability again
This can discount some crazy creatures by quite a lot