At the beginning of each opponent's upkeep, that player may pay life equal to the number of pain counters they have plus 1. If they don't, look at their hand, choose a card from it, and exile that card. If they do, that player gets a pain counter.
You may cast cards exiled with Alehana, and mana of any type can be spent to cast them.

Whenever another creature enters the battlefield under your control, put a first strike counter on Aspiring Hero if that creature has first strike and Aspiring Hero doesn't. The same is true for flying, deathtouch, double strike, haste, hexproof, indestructible, lifelink, menace, reach, trample, vigilance, and ward.

Create two 1/1 red Soldier creature tokens.
Revolt — If a permanent you controlled left the battlefield this turn, those tokens get +1/+1 and gain haste until end of turn.

Creatures you control with power greater than their base power can't be blocked by more than one creature.
{G}{W}: Target creature gets +1/+1 until end of turn. Activate only as a sorcery.

Flash
When Benthalos of Land and Sea enters the battlefield, you may pay {X}. When you do, create a token that's a copy of target white or blue enchantment you control with mana value X or less.

Flash
When Blind Keelah enters the battlefield and whenever you cast a spell during an opponent's turn, each opponent loses 1 life and you surveil 1. This ability triggers only once each turn.

Haste
Whenever you amp it up, put a +1/+1 counter on Breakbot. It gains first strike until end of turn.

Flash
Haste
When Cuernas, Victor of the Ring enters the battlefield, it and other legendary creatures you control gain trample and indestructible until end of turn.

As long as Ella's Agent is attacking, it gets +2/+0 and has deathtouch.
{1}, Sacrifice a creature: Target creature you control gains indestructible until end of turn.

{1}, Exile a permanent card from your graveyard: Surveil 2.
{2}, Exile two permanent cards from your graveyard: Draw a card.
{5}, Exile five permanent cards from your graveyard: Exchange your hand and graveyard.

Ward {1}
Whenever one or more counters are put on Enlightened Naturalist, draw a card for each kind of counter put on it on it that it didn't have already.

Enchant land
When Gift of Deadwoods enters the battlefield, mill three cards, then return a creature or land card milled this way to your hand.
At the beginning of combat on each player's turn, if you're ancient, you may have enchanted land become a 4/4 Elemental creature until end of turn. It's still a land.

Solidarity
Whenever Inspired Denizen attacks, create a 1/1 green Citizen creature token that's tapped and attacking.

Flying
Whenever Irrlicht deals combat damage to a player, they reveal their hand and you choose a nonland card from it. Exile that card until your next turn.

Choose one. If your devotion to green is three or greater, you may choose another. The same is true for devotion to white.
• Permanents you control gain hexproof until end of turn.
• Create a token that's a copy of an Aura you control.
• Each opponent sacrifices a creature with power 4 or greater.

Choose one —
• Target attacking creature you control gets +1/+1 until end of turn for each creature you control.
• Choose target creature you control. Create a number of 1/1 white Human creature tokens equal to that creature's power.
Flashback {3}{R}{W}

Attacking creatures you control have first strike.
Whenever you amp it up, draw a card.

Enchant land you control
Enchanted land is a 2/2 Elemental creature with vigilance, haste, ward {1}, and “{T}: Add two mana of different colors.” It's still a land.
If enchanted land would be leave the battlefield, instead sacrifice Manifest the Lightveins and that land gains indestructible until end of turn.

Whenever you cast a noncreature spell, surveil 1.
If you would draw a card while your library has no cards in it, you may instead put a card you own from exile or outside the game into your hand.

Lifelink
{B}, Pay 2 life: Mortea, Bloodline Keeper gets +1/+1 until end of turn.
At the beginning of your end step, if your life total is 7 or higher than your starting life total, you may return Mortea from your graveyard to the battlefield tapped.

Flying
Neotech Exploiter gets +2/+0 for each permanent you control but don't own.

Nobles you control get +1/+1 and have ward {1}.
{B}{W}: Level 2
When this Class becomes level 2, you may search your library for a Noble card, reveal it, put it into your hand, then shuffle.
{1}{B}{W}: Level 3
When this Class becomes level 3, each opponent loses 3 life and you gain 3 life.

Reach, deathtouch
Once each turn, when a counter is put on a creature you control, you may put a counter of that kind on another creature you control.

Flying
Indulgence
Palace Gargoyle can't attack or block unless you indulged during your last turn.

Choose one. If your devotion to blue is three or greater, you may choose another. The same is true for devotion to black.
• Target player mills eight cards.
• You gain 1 life for each card type among cards in your opponents' graveyards.
• Draw a card.