Here's my mono white deck, which is based on similar themes. Believe it or not, the ram and pridemate are very good together. And yes, Archangel of Thune, at least until she rotates.
I made a casual Thromok the Insatiable deck, then cut Thromok for more burn to make it Modern legal. But I know nothing about the way Modern actually plays, so I'd love some advice on how to make the deck the best it can be.
The deck wants to spend the early turns on cheap token generators and burn, so it can survive a couple turns of laying down Parallel Lives and / or Doubling Season, then finish off with either a swarm of dragons or a Mycoloth - either a trampley one or one that makes enough Saprolings to overwhelm the opponent.
4 Ajani's Pridemate
3 Nyx-Fleece Ram
4 Phalanx Leader
4 Fabled Hero
4 Archangel of Thune
4 Launch the Fleet
4 Battlewise Valor
4 Banishing Light
4 Dauntless Onslaught
3 Ajani Steadfast
14 Plains
4 Mutavault
4 Radiant Fountain
Token Torment
4 Mycoloth
3 Siege-Gang Commander
3 Flame Slash
3 Lightning Bolt
3 Rancor
4 Dragon Fodder
3 Krenko's Command
3 Giantbaiting
4 Parallel Lives
3 Doubling Season
9 Mountain
4 Rootbound Crag
3 Stomping Ground
The deck wants to spend the early turns on cheap token generators and burn, so it can survive a couple turns of laying down Parallel Lives and / or Doubling Season, then finish off with either a swarm of dragons or a Mycoloth - either a trampley one or one that makes enough Saprolings to overwhelm the opponent.