White mana is generally known for attacking enchantments and large creatures, but we also get this Saviors of Kamigawa rare
It gives your Squirrels the ability to tap themselves to pump another Squirrel, and gives you card draw when your Squirrels hit opponents in combat
And the fact that this Ulvenwald guide was so wrong in assessing the threat before it is also a good representation of Snarling Wolfs ability to give itself +2/+2, making it a greater threat than it wouldve seemed at first
You can also look for abilities paid for with life, sacrifices, discard, and other alternate resources which could help squeeze in more crime for less mana
but first be sure to check out my top 10 white cards, top 10 blue cards, top 10 black cards, top 10 red cards, and top 10 green cards if you missed them