Veteran players will, of course, probably want to just jump straight in with the boosters
it offers you so much value that it's best to think of it as an enchantment that costs no mana, at the expense of skipping a land-drop for the turn
You can accept or decline a shops offer after theyve priced your cards
You can always upgrade the tribe with generic upgrades like Metallic Mimic, Adaptive Automaton, Coat of Arms, or Door of Destinies too
The high MV is a problem, but with some support from cards like Repurposing Bay and Spire Golem this legendary artifact should be beefing up your creatures in no time
This one-drop demands that you have two removal spells right away, because your opponent is almost certainly going to toss a land into the bin if it means keeping Safekeeper in play to keep their combos safe