Instants were a type of card that had a good amount of change done to them in Revised
We can source vintage sets, special editions, and hard-to-find products from the Japanese secondary market
The other factor with Natural Order is that when you have enough cheap green creatures in your deck to enable it you probably just have enough mana to cast the things you would want to Order up
Arcane Signet is a solid source of ramp and fixing

Abigale, Poet Laureate Abjure Absorb Absorb Energy Abstruse Interference Access Denied Acornelia, Fashionable Filcher Admiral's Order Adrix and Nev, Twincasters Adventurous Eater Aegis Sculptor Aether Spike Alessos and Pras, Acrobats Amazing Acrobatics Amulet of Safekeeping An Offer You Can't Refuse Angelic Cub Annul Anticognition April O'Neil, Human Element Arbalest Engineers Arcane Archery Arcane Denial Arcbound Tracker Archive Dragon Archmage's Charm Arenson's Aura Aria of Flame Armguard Familiar Armored Armadillo Artifact Blast Artistic Refusal Assert Authority Assimilate Essence Atmosphere Surgeon Autonomous Assembler Avoid Fate Axebane Ferox Bag Check Bane's Contingency Bant Charm Bar the Gate Baron Von Count Beast Mode Benevolent River Spirit Bind to Secrecy Blazing Bomb Blink Bloodcrazed Hoplite Bloomwielder Dryads Blue Elemental Blast Blue Marvel, Adam Brashear Bogslither's Embrace Bone to Ash Briarknit Kami Brine Seer Brine Shaman Bring the Ending Broken Ambitions Broken Concentration Bronze Guardian Brush Off Budoka Pupil Budoka Pupil Burly Breaker Burnout Busted

While strategies can help you navigate the outcomes, the best approach is to accept the randomness as part of the game and focus on improving your overall gameplay