| Alpine Watchdog | M21-2 |
| Alseid of Life's Bounty | THB-1 |
| Altar of the Pantheon | THB-231 |
| Altar's Reap | DDR-37 |
| Always Watching | SOI-1 |
| Amass the Components | IMA-41 |
| Ambassador Oak | A25-158 |
| Amber Prison | MIR-292 |
| Ambition's Cost | C15-113 |
| Ambitious Aetherborn | KLD-72 |
| Ambush Commander | EVG-1 |
| Aminatou, the Fateshifter | 2X2-169 |
| Aminatou's Augury | C18-6 |
| Amoeboid Changeling | LRW-51 |
| Amoeboid Changeling | J22-269 |
| Amphin Pathmage | M15-45 |
| Amulet of Vigor | WWK-121 |
| An Offer You Can't Refuse | SNC-51 |
| Ana Sanctuary | APC-74 |
| Anarchist | ODY-173 |
| Anax and Cymede | THS-186 |
| Anax, Hardened in the Forge | THB-264 |
| Anax, Hardened in the Forge | THB-125 |
| Ancestor Dragon | GS1-12 |
| Ancestor's Prophet | ONS-3 |
| Ancestors' Aid | LCI-132 |
| Ancestral Blade | 2XM-3 |
| Ancestral Mask | EMA-157 |
| Ancestral Mask | MMQ-229 |
| Ancestral Memories | POR-40 |
| Ancestral Vengeance | FRF-61 |
| Ancient Amphitheater | LRW-266 |
| Ancient Brontodon | XLN-175 |
| Ancient Craving | P02-62 |
| Ancient Den | MRD-278 |
| Ancient Excavation | PZ2-38 |
| Ancient Grudge | MM3-88 |
| Ancient Hydra | NEM-76 |
| Ancient Lumberknot | VOW-230 |
| Ancient Silverback | M15-168 |
| Ancient Spider | PLS-96 |
| Ancient Stirrings | A25-159 |
| Ancient Tomb | TMP-315 |
| Ancient Ziggurat | CON-141 |
| Angel | TGRN-1 |
| Angel | TAFR-1 |
| Angel of Despair | UMA-196 |
| Angel of Destiny | ZNR-2 |
| Angel of Light | ME2-3 |
| Angel of Mercy | IMA-6 |