Reach
When Sandstorm Devil enters, it acclimates.
As long as you control a Weather or another Dragon, Sandstorm Devil has menace.

Flash
Vigilance
Whenever Exuberant Caprisaur attacks or blocks, you gain 2 life. Then if your life total is greater than 20, put two +1/+1 counters on Exuberant Caprisaur.

Vigilance
{W}, {T}: Tap target creature with power 2 or less.
Cybersoul {3}{W}

First strike
Cybersoul {4}{W}

Enchant creature
Enchanted creature gets +1/+1 and has protection from creatures.

Exile target creature. Create a token that's a copy of it except it's a Ruin artifact instead of its other types and it has spellcharge X, where X is its mana value.

Ward {2}
Amity — Whenever Surging Mudskipper attacks, surveil 1. You may play that card from your graveyard this turn. If exactly one other creature attacked with it, this ability triggers three times instead.

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 Steelhorn Crusher or another artifact you control enters, artifact creatures you control gain menace until end of turn.

Flying
Whenever this creature becomes tapped, surveil 1. If it isn't attacking, surveil 2 instead.

Nebulous Ring enters tapped.
{T}: Add {C} or {W}.
{1}, Discard Nebulous Ring: Scry 2.

{T}: Add {C}. If this land entered this turn, you may add one mana of any color instead.
{4}, {T}: Create a tapped 1/1 colorless Fox Shapeshifter creature token with changeling.

Exile target creature you control, then return that card to the battlefield under your control with an additional +1/+1 counter on it.

Ward {2}
Whenever an enchantment you control enters, put a +1/+1 counter on Tiro, the Silent Blade.

Whenever you discard a card, you may have this enchantment become a 3/3 Dragon creature with flying in addition to its other types until end of turn.
{U}, Sacrifice this enchantment: Return target card you discarded this turn from your graveyard to your hand.

Target nonland permanent's controller caches it.

This spell costs {4} less to cast if each of its targets are owned by different players.
Return up to two target nonland permanents to their owners' hands.
Cycling {2}

Kraken, Leviathan, Octopus, and Serpent spells you cast cost {X} less to cast, where X is your devotion to blue.

Whenever Reaper of Fields attacks, bless target land.

Trample
Whenever you cast a noncreature spell, put a +1/+1 counter on this Vehicle.
Crew 1

Reveal the top five cards of your library. You may put a colorless permanent card, a monocolored permanent card, and/or a multicolored permanent card from among them into your hand. Put the rest on the bottom of your library in any order.

Trample
Whenever you attack, up to one target attacking creature gets +2/+0 and gains trample until end of turn.

Whenever you create one or more tokens, put a +1/+1 counter on this creature.

Indestructible
As long as your devotion to white and black is less than seven, Athreos isn't a creature.
Whenever a creature dies, exile it with a coin counter on it. Each opponent loses 1 life and you gain 1 life.
Whenever Athreos attacks, put a creature card you exiled with a coin counter on it onto the battlefield under your control.