Being an X spell it gets better as your mana reserves go up however you can play this as a miracle for any value of X and get a really good deal
Whenever another creature enters, you choose one of three modes, put a +1/+1 counter on the Greeters, create a tapped Treasure token, or gain 2 life
If you get a non-numerical result (currently just the planar die, but the future is long), that part of the effect won't do anything
5 Cavern-Hoard Dragon ( F, MC, T ) - 8 mana is a lot for a 6/6, even if it does have haste, but you will never actually pay that
Print-on-demand proxies are for the part of Magic that actually happens most of the time: kitchen-table games, Commander nights, cube drafts, gauntlet testing, and I want to try this deck before I spend rent money on cardboard. The hard part isnt finding a printer