Reach (This creature can block creatures with flying.)

As long as you control a Nissa planeswalker, Guardian of the Great Conduit gets +2/+0 and has vigilance. (Attacking doesn't cause it to tap.)

Whenever a nontoken creature enters the battlefield under your control, if it doesn't have the same name as another creature you control or a creature card in your graveyard, draw a card.

Reveal the cards in your library. An opponent chooses from among them a creature card, a land card, and a noncreature, nonland card. You put the chosen cards into your hand. Then shuffle.

At the beginning of your upkeep, sacrifice Gurzigost unless you put two cards from your graveyard on the bottom of your library.

, Discard a card: You may have Gurzigost assign its combat damage this turn as though it weren't blocked.

Whenever a nontoken creature you control dies, put a slime counter on Gutter Grime, then create a green Ooze creature token with "This creature's power and toughness are each equal to the number of slime counters on Gutter Grime."

: Add two mana in any combination of colors. Spend this mana only to cast creature spells or activate abilities of creature sources.

Whenever you cast a creature spell with power 5 or greater, put a +1/+1 counter on Gwenna, Eyes of Gaea and untap it.

Trample

At the beginning of your end step, create a number of Food tokens equal to the number of nontoken creatures you had enter the battlefield under your control this turn.

, Sacrifice a Food: Target creature gains indestructible until end of turn. Tap it.

Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)

: Add for each +1/+1 counter on Gyre Sage.

At the beginning of combat on your turn, put a +1/+1 counter on target creature you control. Then if that creature has three or more +1/+1 counters on it, transform Hadana's Climb.

Hail Storm deals 2 damage to each attacking creature and 1 damage to you and each creature you control.

At the beginning of combat on your turn, each Merfolk creature you control explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on the exploring creature, then put the card back or put it into your graveyard.)

Whenever Hakbal of the Surging Soul attacks, you may put a land card from your hand onto the battlefield. If you don't, draw a card.

Reach

Whenever another creature enters the battlefield under your control, you may pay . When you do, that creature deals damage equal to its power to target creature.

Partner (You can have two commanders if both have partner.)

At the beginning of each player's upkeep, that player chooses a color. Until end of turn, lands tapped for mana produce mana of the chosen color instead of any other color.

: Until end of turn, target token you control becomes a green Bear creature with base power and toughness 4/4 in addition to its other colors and types.

Choose a Background (You can have a Background as a second commander.)

Bargain (You may sacrifice an artifact, enchantment, or token as you cast this spell.)

This spell costs less to cast if it's bargained.

Trample

When Hamlet Glutton enters the battlefield, you gain 3 life.

This spell costs less to cast for each creature you control with a +1/+1 counter on it.

Creature spells you cast cost less to cast for each creature you control with a +1/+1 counter on it.

Whenever Hans Eriksson attacks, reveal the top card of your library. If it's a creature card, put it onto the battlefield tapped and attacking defending player or a planeswalker they control. Otherwise, put that card into your hand. When you put a creature card onto the battlefield this way, it fights Hans Eriksson.

Target creature you control gains hexproof until end of turn. Remove all -1/-1 counters from it. (A creature with hexproof can't be the target of spells or abilities your opponents control.)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — Mill three cards. You may put an Elf or Tyvar card from your graveyard onto the battlefield.

II — Put a +1/+1 counter on each Elf you control.

III — Whenever an Elf you control attacks this turn, target creature an opponent controls gets -1/-1 until end of turn.

Protection from non-Spirit creatures

Soulshift 4 (When this creature dies, you may return target Spirit card with mana value 4 or less from your graveyard to your hand.)

: Add one mana of any color.

Whenever you commit a crime, untap Hardbristle Bandit. This ability triggers only once each turn. (Targeting opponents, anything they control, and/or cards in their graveyards is a crime.)

Enchant creature

Enchanted creature gets +3/+3.

Commander creatures you own have "Whenever this creature attacks a player, if no opponent has more life than that player, another target creature you control gets +X/+X until end of turn, where X is this creature's power."

Target creature you control gains vigilance and gets +X/+X until end of turn, where X is the number of creatures you control.

All Slivers have "When this permanent enters the battlefield, destroy target artifact or enchantment."

Draw three cards.

Exchange your hand and graveyard.

Exile Harness Infinity.

When Haru-Onna enters the battlefield, draw a card.

Whenever you cast a Spirit or Arcane spell, you may return Haru-Onna to its owner's hand.

, , Discard a card: Until end of turn, if you tap a land for mana, it produces one mana of a color of your choice instead of any other type and amount.

When Harvest Wurm enters the battlefield, sacrifice it unless you return a basic land card from your graveyard to your hand.

When Harvester Troll enters the battlefield, you may sacrifice a creature or land. If you do, put two +1/+1 counters on Harvester Troll.

Replicate (When you cast this spell, copy it for each time you paid its replicate cost.)

Each Sliver spell you cast has replicate. The replicate cost is equal to its mana cost. (A copy of a permanent spell becomes a token.)

Flash (You may cast this spell any time you could cast an instant.)

Trample

Creatures with no counters on them get -2/-2 until end of turn.

Prevent all combat damage that would be dealt this turn.

Cycling (, Discard this card: Draw a card.)

Desertwalk (This creature can't be blocked as long as defending player controls a Desert.)

You may play Desert lands from your graveyard.

Whenever a Desert enters the battlefield under your control, create two 1/1 red, green, and white Sand Warrior creature tokens.

When Healer of the Glade enters the battlefield, you gain 3 life.

Demonstrate (When you cast this spell, you may copy it. If you do, choose an opponent to also copy it. Players may choose new targets for their copies.)

Return target card from your graveyard to your hand. You gain life equal to that card's mana value. Exile Healing Technique.

Whenever a player taps a land for mana, that player adds one mana of any type that land produced.

Create a 1/1 white Human creature token. (Then exile this card. You may cast the creature later from exile.)

, Sacrifice a Forest: Heartwood Giant deals 2 damage to target player or planeswalker.

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)

Cast this spell only during the declare attackers step and only if you've been attacked this step.

Prevent all damage that would be dealt to you this turn by attacking creatures.

You may choose not to untap Hedge Whisperer during your untap step.

, , Collect evidence 4: Target land you control becomes a 5/5 green Plant Boar creature with haste for as long as Hedge Whisperer remains tapped. It's still a land. Activate only as a sorcery. (To collect evidence 4, exile cards with total mana value 4 or greater from your graveyard.)

Heir of the Ancient Fang enters the battlefield with a +1/+1 counter on it if you control a modified creature. (Equipment, Auras you control, and counters are modifications.)

Shroud (This enchantment can't be the target of spells or abilities.)

: Put X tower counters on Helix Pinnacle.

At the beginning of your upkeep, if there are 100 or more tower counters on Helix Pinnacle, you win the game.

Flying, trample, haste

: Hellkite Overlord gets +1/+0 until end of turn.

: Regenerate Hellkite Overlord.

Each creature spell you cast with mana value 4 or greater has blitz. The blitz cost is equal to its mana cost. (You may choose to cast that spell for its blitz cost. If you do it gains haste and "When this creature dies, draw a card." Sacrifice it at the beginning of the next end step.)

Blitz costs you pay cost less for each time you've cast your commander from the command zone this game.

Enchantment spells you cast cost less to cast.

Whenever you cast an enchantment spell, you gain 1 life.