The company offers many ready-made solutions for you
Speaking of Throttle, if you have a really giant creature and you dont want it to get killed via Smite the Monstrous you could shrink your creature with Throttle in response to make Smite the Monstrous fizzle (just make sure the creature has more than 4 toughness or your friends will likely laugh at you)
It is not just mitigated by having other modes but also mitigated by being able to do itself multiple times
By adding a few simple cards, like Pili-pala, for example, you can easily generate infinite mana through any number of means
While it is only one-half of an un-entwined Tooth and Nail, it's clear to us that Tooth and Nail is just that strong (speaking of which, has Tooth and Nail seen much Commander play lately
Tithe Taker I don't believe that this card is going to stay on the battlefield for long