If you would add mana of a color to your mana pool, you may instead add an amount equal to your devotion to that color instead.

At the beginning of your upkeep, integrate the top card of target player's library.
Whenever a creature card is integrated onto Offerings to Sky Gods, create a 1/1 colorless Cyborg artifact creature token.

Trample
Amity — Whenever Old-Growth Gecko attacks, put a +1/+1 counters on another creature you control. If exactly one other creature attacked with it, this ability triggers three times instead.

Flash
When Omen of Horizons enters, put two +1/+1 counters on target creature you control.
{2}{G}, Sacrifice Omen of Horizons: Scry 2.

Flash
When Omen of Storms enters, discard a card, then draw two cards.
{2}{R}, Sacrifice Omen of Storms: Scry 2.

Whenever Omnoid Destroyer or another artifact you control enters, artifact creatures you control gain deathtouch until end of turn.

Create three 1/1 red and green Elemental creature tokens.

Flying, haste
As an additional cost to cast spells with flashback, you may pay {1}{R}. When you do, return Opal-Eye Phoenix from your graveyard to the battlefield.

Whenever you cast an instant or sorcery spell, untap Orbinoid.
{T}: Add one mana of any type.

Enchant creature
Whenever enchanted creature attacks, put a +1/+1 counter on it. Then if it has three or more +1/+1 counters on it, sacrifice Ordeal of Karametra.
Whenever you sacrifice Ordeal of Karametra, put a +1/+1 counter on each creature you control. Untap them.

Enchant creature
Whenever enchanted creature attacks, put a +1/+1 counter on it. Then if it has three or more +1/+1 counters on it, sacrifice Ordeal of Karda.
Whenever you sacrifice Ordeal of Karda, creatures you control get +2/+0 until end of turn.

This spell costs {2} less to cast if it targets a creature you control with power 4 or greater.
Target creature you control deals damage equal to its power to target creature you don't control.

Search your library for a creature card with mana value 2 or less, put it onto the battlefield tapped, then shuffle.

Trample
Solidarity
{G}, Sacrifice an enchantment: Ozanwood Huntsman gets +2/+2 until end of turn.

When Ozanwood Murk dies, draw a card.

Choose one. For every two different creature types among creatures you control, you may choose another —
• Target creature gets +3/+3 until end of turn.
• Target creature you control fights another target creature.
• Add three mana of any one type.
• Draw a card.

When Padpole enters, create a Berry token.
Surface {3}{G}

When Parental Pair enters, create a token that's a copy of it, except it's 2/2 and doesn't have this ability.
Amity — Whenever you attack with Parental Pair and exactly one other creature, you may have Parental Pair fight target creature.

At the beginning of combat on your turn, if you've spent at least five mana to cast spells this turn, Peaktop Predator deals 2 damage to target player or planeswalker.

Haste
Whenever Penrath Firearm attacks, create a colorless Equipment artifact token with “Equipped creature gets +2/+0” and equip {2} attached to target attacking creature.

When Pensive Caldera enters, you may discard a card. If you do, draw a card.
{T}: Add {R}. Spend this mana only to cast artifact, instant, or sorcery spells.

Flash
When Permafrost Tiger enters, you may have it fight target creature that entered this turn.

{T}: Add one mana of any color.
{1}{VP}{VP}{VP}, {T}, Sacrifice Petabyte Prism: Draw two cards.

Trample
Petros's power is equal to your devotion to red.
Whenever Petros deals combat damage to a player, create an X/X colorless enchantment artifact creature token named Follower, where X is the amount of damage dealt.

Vigilance
Whenever Pheres-Band Huntmaster becomes the target of a spell or ability you control, put a +1/+1 counter on it. You gain 2 life.