
The Crystal's Chosen | Sorcery | | Create four 1/1 colorless Hero creature tokens. Then put a +1/+1 counter on each creature you control. | Kotetsu Kinoshita

Travel the Overworld | Sorcery | | Affinity for Towns (This spell costs {1} less to cast for each Town you control.)
Draw four cards. | Ben Wootten

Valkyrie Aerial Unit | Artifact Creature | Construct | Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
Flying
When this creature enters, surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.) | hippo

Coliseum Behemoth | Creature | Beast | Trample
When this creature enters, choose one —
• Destroy target artifact or enchantment.
• Draw a card. | Ryu Fujinaka

Diamond Weapon | Legendary Artifact Creature | Elemental | This spell costs {1} less to cast for each permanent card in your graveyard.
Reach
Immune — Prevent all combat damage that would be dealt to Diamond Weapon. | Esuthio

Omega, Heartless Evolution | Legendary Artifact Creature | Robot | Wave Cannon — When Omega enters, for each opponent, tap up to one target nonland permanent that opponent controls. Put X stun counters on each of those permanents and you gain X life, where X is the number of nonbasic lands you control. (If a permanent with a stun counter would become untapped, remove one from it instead.) | Josu Solano