On the note of budget, each wildcard costs the same and is earned the same way in their given rarities, thus, if you spend a wildcard on a super expensive common or mythic, you can play with cards that would cost a fortune IRL
Green and white are both great at combat tricks , so splashing either in for access to instants like Giant Growth or Fleeting Flight is a big boost
Yes, but only if you really want to play with older cards or if you want to play really competitive magic
In raw ungraded condition, the Movie Promo Mewtwo is not particularly expensive given the massive number of copies distributed at theaters across North America

Abstruse Appropriation Abstruse Archaic Abstruse Interference Abundant Countryside Access Denied Accomplished Automaton Adarkar Unicorn Adarkar Wastes Adverse Conditions Aerith Rescue Mission Aether Chaser Aether Herder Aether Inspector Aether Poisoner Aether Swooper Age of Ultron Akki Ember-Keeper Ambitious Aetherborn An-Havva Township Ancient Kavu Ancient Stirrings Ancient Stone Idol Ancient Tomb Angel of Invention Angelic Aberration Angelic Intervention Angelic Sleuth Anim Pakal, Thousandth Moon Animation Module Antique Collector Archaeological Dig Architect of Restoration Architect of the Untamed Ashnod's Altar Ashnod, Flesh Mechanist Aspiring Aeronaut Astrologian's Planisphere Automated Assembly Line Auxiliary Boosters Avatar Kuruk Aviation Pioneer Awakening Zone Aysen Abbey Azlask, the Swelling Scourge Baboon Spirit Back on Track Baku Altar Barbed Spike Bard's Bow Barrage Tyrant Basalt Golem Basalt Monolith Basilica Shepherd Basking Broodscale Battlefield Forge Baxter Stockman Bearer of Overwhelming Truths Bearer of Silence Belonging Benthic Anomaly Big Mother Mouser Biomechan Engineer Birthing Boughs Birthing Hulk Black Mage's Rod Black Market Connections Blacksmith's Talent Blade Splicer Blasted Landscape Blazing Blade Askari Blight Herder Blinding Drone
