It seems like you've got a good bit of advice on most of what you talked about from the above posters, but I'd like to touch more on the Life from the Loam/Raven's Crime/Smokestack type thing, since it's more up my alley and more my area of experience
Low ultimate mana cost, direct as well as being card quality on top of enabling your combo
Nature's Claim [Search for the Frozen Esper] is a Green Uncommon from the Magic: the Gathering set FINAL FANTASY: Through the Ages Single Cards: Variants - Non-foil (English) Language: English Colour: Green Magic Set: FINAL FANTASY: Through the Ages Card Type: Instant Rarity: Uncommon Delivery Methods - Domestic Standard Delivery (1-3 day service) Economy Delivery (3-5 day service) Royal Mail 24 Tracked (1-2 day service) Royal Mail 48 Tracked (2-3 day service) Express Delivery (Next Day (Mon-Fri) service) Saturday Delivery (delivered on Saturday) Returns Information Returns can be made within 14 days of purchase
Disturb itself is notably different in this set: every creature has an Aura on its reverse side, so you cant just mill them until you have an endless supply of attackers
Start with the amount of damage being dealt to the creature and determine what is lethal. This is the creatures toughness minus the amount of damage that it already has marked on it, but ignoring any replacement or prevention effects that will modify this damage
This is the risk that you won't have the same number of cards to sideboard out as the number of cards you have to sideboard in
