Always ensure that the type of postage is adequate, if you are sending 0-20$ worth of cards, use postage that covers that amount, you may risk without it as the risk-benefit (cheaper price) might be worth it for you
Being better than just a Populate, as this can copy non-Creature tokens, I quite like the concept around this card in the Command Zone, but it's probably outmoded by Ghired, Mirror of the Wilds
Inferno Titan and God-Eternal Rhonas really bring some heavy beats while Avenger of Zendikar and Omnath, Locus of Rage spit out tons of creatures to crush all of your opponents
This works exactly like any other equipment
That scry 2 makes all the difference
Cards like Archon of Emeria that limit the number of spells you can play in a turn can be devastating