The deck then adds a number of spells with strong artifact synergy including card draw (Losheel), +1/+1 counters (Steel Overseer), burn (Ingenious Artillerist), direct damage (Mayhem Devil), drain (Mirkwood Bats, Nadier's Nightblade), and more
Since there's no color restriction you can slot Conjurer's Closet into practically any deck, though a little bit of ramp is nice since five-mana is a bit of an awkward amount when you normally will want a higher impact card going into the mid-game
Some have a temporary effect, but most continually grant the effect while theyre on board or until the end of the game
Do you absolutely need to know every Disney Lorcana card ever shown
Finally, question 3 requires you to consider the needs of your deck