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Remember the time before Link Monsters when you could Special Summon a single monster and just accelerate into victory, murderizing your opponent faster than they could say "I draw"

Tutors In order to have Sunforger or other cards on hand at the right time, a few tutors would be helpful

Modern Modern is the big brother to Pioneer

You could also use the last ability to give pseudo vigilance to your bigger behemoths, or even help out a comrade in a dire situation by untapping one or more of their creatures

Bennie Smith has your answer

This means a rare card being printed in a Secret Lair no longer makes it more accessible