You can select them in any ways you wantmaybe you just like those colorsbut keep an eye out for three things: Strong and exciting rares in your colors Removal cards, such as cards that destroy or otherwise deal with your opponent's creatures Cards with evasion, such as flying creatures or hard-to-block cards Additionally, another huge element to look for are good synergies and multicolor cards
Prizes Participation P-043 Monkey type Characters, then OP09-037-lim is a great addition
Between the politics, cost-cutting, and top-down direction, new ideas are seen as actively bad, and promoting them can severely limit your career
Umara Wizard / Umara Skyfalls In Umara Wizard, we have a 4/3 merfolk wizard that cares about instants, sorceries, and wizard spells being cast
Legality depends on the tournament format -- Isochron Scepter can be legal in some formats and banned or restricted in others