You can't put a Teferi's Moat out there for a long, long time against decks unknown with the knowledge that an enchantment removal or bounce spell will almost certainly kill you unless you are very brave, and once you start down the Moat road it's hard to stop
The Island ones were cute because they were reminiscent of Pacific Rim, but this one fits because of the back lighting
Ram Through is a crazy powerful card under normal circumstances, but given Multanis size and trample ability, Ram Through becomes turbo-charged
Equipment makes a lot of sense for big flying creatures with lots of good abilities
For example, you could have four copies of Mickey Mouse, Wayward Sorcerer and four copies of Mickey Mouse, Brave Little Tailor if you really love the Disney mascot
Vanquish the Horde A 'destroy all creatures' spell that gets cheaper the more targets are out on the field, this powerful board wipe hasn't quite found a home in the Standard format, where the current top white decks are full of low-cost creatures, but that doesn't mean it's not extremely potent