While Sidar wont deal a ton of damage on his own, he heavily complicates combat math for opponents
Its yet another card from the Forgotten Realms precon

5 Traditional foil borderless scene rares (12.36%) 1 Traditional foil borderless scene mythic rare (1.24%) 1 Traditional foil rare or mythic rarecan be any of the following: 32 Traditional foil rares (82.05%) 14 Traditional foil mythic rares (17.95%) 1 Non-foil extended-art rare or mythic rarecan be any of the following: 16 Non-foil extended-art rares (97%) 1 Non-foil extended-art mythic rare (3.0%) 1 Traditional foil rare or mythic rare that's an alternate-frame, extended-art, or borderless card, or one of the following: 2 Traditional foil borderless rares (4.95%) 8 Traditional foil borderless mythic rares (9.91%) 14 Traditional foil showcase memory corridor rares (34.67%) 5 Traditional foil showcase memory corridor mythic rares (6.19%) 16 Traditional foil extended-art rares (39.62%) 1 Traditional foil extended-art mythic rare (1.24%) 5 Textured foil showcase memory corridor mythic rares (3.25%) 4 Double rainbow serialized cards (500 of each) 1 Foil-etched rare or mythic rarecan be any of the following: 32 Foil-etched rares (82.05%) 14 Foil-etched mythic rares (17.95%) 1 Traditional foil double-sided token *Note: Probabilities may not sum to 100% due to rounding

Otherwise youll also have to find every single Matchprint card of which most only have two copies if youre going for an Expedition Base Set master set for example
Theres no reason these colors cant overlap with the Bant ones, either, and some of the mechanical themes could easily be shared between the factions given their shared custody of green and white
Every serious collector wants this Mew ex in their collection