In Tempest, it was turn one (Mogg Fanatics, shadow creatures, and flyers), Invasion turn two (2/2 bears for every possible color combination plus several one- and two-mana apprentices and utility creatures), and Mirage turn three
As you achieve minor weekly quests, such as inflicting X amount of damage or casting X number of spells of a certain color, you earn in-game gold that can be spent on slowly acquiring more booster packs, which you can open to earn a handful of randomly-generated cards
I don't know if this is your intent or not, so I'll make it a straight observation, but the Ward on Goyo Guardian is somewhat worse than Ward
That said, Im not sure what youre using Vision Quest to find, but theres Krang, Utrom Warlord, the Gearhulks from Aetherdrift , and more
First, we themed the archetypes around the color pairs