5 Jarad, Golgari Lich Lord + Jumbo Cactuar Send That Damage Right To The Face Attacking with Jumbo Cactuar makes him a 10,000/7, but for all that might, it can be blocked by a measly 1/1 token, and nothing will happen to all that damage
Hammer of Nazahn gives the equipped creature +2/+0 and makes it indestructible
You can use the fingers on both of your hands
However, if instead the creature's power is raised above 2 after the ability resolves, it still can't be blocked that turn
That said, if you want to go for a knight deck thats very attack-heavy with a focus on playing multicolored knights, this card can give your attacks a huge boost, especially by making your white knights untap so you can protect yourself after attacking