Terastodon, Woodfall Primus, and Primeval Titan are probably the best cards for the "big green creature" role, but Simic Sky Swallower and Broodmate Dragon can serve the role as well, although they require greater deck manipulation to be able to hard cast should you draw either of them before finding your Natural Order
The easy sacrifice outlet is very relevant since you'll put Yahenni through the combat phase if all goes well
Connive with Raffine, Scheming Seer
Dour Port-Mage Satoru, the Infiltrator has a new bestie just in time to replace all the ninjas rotating out of Standard
2 Sneak There are quite a few ways to get your big, expensive creatures into play through sneaky ways, though not all of them are legal in their respective formats
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