This spell costs {1} less to cast for each card with a cycling ability in your graveyard.
Reach

At the beginning of your end step, you gain 1 life.
Whitecliff Guardian gets +0/+1 for each 1 life you have above your starting life total.

Choose target creature you control. When that creature leaves the battlefield this turn, choose one —
• Create a token that's a copy of it.
• Search your library for a creature card with lesser mana value, put it onto the battlefield, then shuffle.

Hivecaste Vukoroq gets +1/+2 as long as you control another creature named Hivecaste Vukoroq.

I — Each opponent discards two cards, then mills two cards.
II — Each opponent loses 2 life and you gain 2 life.
III — For each opponent that has eight or more cards in their graveyard, exile a card from that player's graveyard. You may cast cards exiled this way this turn, and mana of any type can be spent to cast cast it.

You may pay {1}{B} rather than pay this spell's mana cost. When you do, target opponent creates two 1/1 white Citizen creature tokens.

Choose up to one for each color among black, red, and green among permanents you control.
• Put up to two target nonland cards from graveyards on top of their owners' libraries in any order.
• Exile the top two cards of target player's library. Until the end of your next turn, you may play those cards.
• Target player creates two tapped Treasure tokens.
Exile Vishanki Agenda.

Enchant creature
Enchanted creature gets -3/-0.

Draw two cards, then discard a card. You may cast a spell with mana value 3 or less from your hand without paying its mana cost.

Choose one —
• Counter target spell unless its controller pays {2}.
• Counter target activated or triggered ability from a nonland source unless its controller pays {2}.

Solidarity
Whenever Battlehymn Howler attacks, add an amount of {G} equal to its power. Until end of turn, you don't lose this mana as steps and phases end.

This land enters tapped.
{2}{G}{W}, {T}: Surveil 1.

Flying
When this creature enters, you may pay {3}{U}. If you do, create two 1/1 blue Bird creature tokens with flying.
Other creatures you control with flying get +1/+1.

Flying
Whenever an opponent spends mana, if it wasn't spent to cast a spell from their hand, you draw a card. This ability triggers only once each turn.

When Barbarous Roughrider enters or leaves the battlefield, each opponent loses 2 life unless they sacrifice a nontoken creature.
Wander {4}{B}{B}

When this creature enters, create a 2/2 blue Bird enchantment creature token with flying.

When Eidolon of Empty Thoughts dies, create a Treasure token.
{6}: Create a 2/1 red Soldier creature token. Activate only as a sorcery and only if your devotion to red is three or more.

Flying
Exalted

Flying
When Archon of Condemnation enters, you may bless target creature.
At the beginning of your upkeep, you may sacrifice a creature. If you do, bless target creature.

Menace
Amity — Whenever you attack with Splitting Smog and exactly one other creature, you may pay {1}{R}. If you do, attacking creatures you control get +2/+0 until end of turn.

Level up {2}{B}
[level 1-2] This creature gets +1/+1 for each creature and/or enchantment card in your graveyard.
[level 3+] This creature gets +1/+1 for each creature and/or enchantment card in all graveyards.

When Gray Merchant of Asphodel enters, each opponent loses X life, where X is your devotion to black. You gain life equal to the life lost this way.

Create a 1/1 white Human creature token, then put a +1/+1 counter on each creature you control.
Flashback {5}{W}

Trample
Ruin, the First Shard enters with a +1/+1 counter on it for each mana spent to cast it.

Each player chooses up to seven cards from their graveyard, then discards their hand and returns the chosen cards to their hand.
Exile Turf Warfare.