Beyond making creatures stronger, other tribal effects might give you a bonus or ability that scales based on the number of creatures in play, like [mtg_card]Wellwisher[/mtg_card] or [mtg_card]Graveborn Muse[/mtg_card]
The attack Shadowy Side Kick not only hits decently, but also protects Marshadow from retaliation if it takes a knockout
Rather than working toward a singular, massive creature, this deck wants you to create a large board of small creature tokens, then buff them up with large anthems
Using Tezzeret to untap mana rocks is the obvious baseline for the card, but I also find most players underuse the toolbox that Tezzeret opens up
Proxies can allow players to use cards they may not otherwise have access to
All you have to do is head on over to the official Secret Lair site and purchase a copy