The way it works, is when Thassas Oracle enters the battlefield, you get to look at the top X cards of your library, where X is equal to your devotion to blue (how many blue mana symbols appear in the casting cost of all permanents you control)
TypeEnchantment Aura Collector Number264 Rarityrare ArtistDouglas Shuler Enchant creature Enchanted creature gets -X/-Y
Baylen, the Haymaker Turning tokens into fuel, Baylen, the Haymaker gives you mana, cards, or big trample swings just by tapping your creatures

The most effective approach follows the traditional color pie that defines both identity and gameplay mechanics: White - The color of order and protection that focuses on efficient creatures, removal spells, and defensive strategies Blue - The color of knowledge and control that emphasizes card draw, counterspells, and manipulating the game state Black - The color of power and ambition that utilizes life as a resource, creature removal, and graveyard interactions Red - The color of freedom and emotion that delivers fast aggression, direct damage, and chaotic effects Green - The color of nature and growth that ramps mana, plays large creatures, and destroys artifacts and enchantments Colorless/Multicolor - Cards that either require no specific mana or combine multiple colors for hybrid strategies and flexible deck-building options This sets up a very simple organization system: color

Legendary Creature - Wizard Elder Color tag templates(None) Zack Fair Zack Fair enters with a +1/+1 counter on it