Thinking of getting giving up on having as many 2-color guilds represented as possible by getting rid of Wood Sage, Guiding Spirit and Asmira. It's difficult because there are so few options for all 10 color pairs in the first 5 years of magic (e.g. Simic, ouch).
They would be removed in favor of just plainly more powerful multicolor cards like Dakkon Blackblade, Sol'Kanar the Swamp King, Vaevictis Asmadi, or hymn of Rebirth.
The Lantern Control-style deck hasn't really worked out, so I may start removing cards from that archetype that are only there for synergy, not power level.