Grab your quill schools about to start
Note that you can Fog any combat, you only get Spiders for the creatures attacking you
You can back up the ward trigger with a few counterspells, and the fun thing is, you can wait for your opponent to pay the ward cost and then toss out a counterspell or two to keep Miirym safe
The 5-cost Nami can force the opponent to add a Life card to their hand, making them more vulnerable to your attackers 9-cost Boa gives us more survivability while putting your opponent behind on Life cards
And because youre still drawing a card with 6+ power creatures, it wont be hard to make sure she continues to grow, draw you cards, and damage all of your opponents
Dethrone (Whenever this creature attacks the player with the most life or tied for most life, put a +1/+1 counter on it.) Whenever this creature attacks for the first time each turn, if it's attacking the player with the most life or tied for most life, untap all attacking creatures