Chasm Skulker and Hangarback Walker can be good beaters as they grow and when they inevitably die can provide a very threatening board state
Amulet of Quoz from Ice Age and Timmerian Fiends from Homelands, were in sets not included within the game
Deck Builders TappedOut Many years ago, TappedOut might have been the best deck building tool on the internet
Basalt Monolith + Grim Monolith + Mana Vault The trifecta of Basalt Monolith, Grim Monolith, and Mana Vault play well with flicker effects that cost less than 3 mana because it makes them mana-positive (you can achieve a similar result with Ghostly Flicker to blink two of them)
We promise it really is an easy game to get started with perhaps easier than any other Trading Card Game on the market at present
When Squirrel Nest enters play, you enchant a target land, and then you can tap that land to produce a 1/1 Squirrel creature token instead of mana