Your child needs at least these 60 cards to get a game going (or a battle, as they like to call it.) The [easyazon_link identifier=B01BGLWIK6 locale=US tag=maminthenow0e-20]booster packs[/easyazon_link] cost around $5 (maybe a little less) and contain 10 random cards
Arasta of the Endless Web Arasta of the Endless Web makes a surprising amount of tokens for its mana cost
This means that any removal spells that say destroy or kill. Do not affect cards with indestructible, and they do not die when damage that would reduce their health to zero or less would kill them
Then, return the remaining cards to the bottom of your deck in any order
With massive dinosaurs, multiplying dinosaurs and even more dinosaurs, theres something to discover for every playstyle in The Lost Caverns of Ixalan
The idea is to play a lot of creatures that draw cards to smoothly build mana with Cryptolith Rite and then to either lock the opponent out with Eldrazi Displacer, or better yet, mirror the Ghostway / Eternal Witness combo, but with Eerie Interlude and Greenwarden of Murasa to protect all your creatures and keep reusing your Elvish Visionaries and Reflector Mages
