Put a +1/+1 counter on target creature you control if it's legendary. Then it fights target creature an opponent controls. (Each deals damage equal to its power to the other.)

Put a +1/+1 counter on target creature. That creature gains reach until end of turn.

Distribute three +1/+1 counters among one, two, or three target creatures, then double the number of +1/+1 counters on each of those creatures.

Cathedral of War enters the battlefield tapped.

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

{T}: Add {C}.

Put a +1/+1 counter on target creature, then proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

As long as you control exactly one creature, that creature gets +2/+0 and has deathtouch and lifelink.

Put two +1/+1 counters on target creature. It gains lifelink until end of turn.

Until end of turn, target creature gains "When this creature dies, return it to the battlefield tapped under its owner's control with a +1/+1 counter on it."

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

Target creature gets +3/+3 until end of turn. Put a trample counter on it.

Prevent all combat damage that would be dealt this turn by creatures with no +1/+1 counters on them.

As long as you control exactly one creature, that creature gets +3/+1 and has lifelink.

Enchant creature

When Hydra's Growth enters the battlefield, put a +1/+1 counter on enchanted creature.

At the beginning of your upkeep, double the number of +1/+1 counters on enchanted creature.

Put five +1/+1 counters on target creature. If this spell was cast from a graveyard, put ten +1/+1 counters on that creature instead.

Flashback {5}{G}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Put a +1/+1 counter on target creature you control, then double the number of +1/+1 counters on that creature.

Whenever a creature enters the battlefield, destroy it.

{0}: Destroy Lethal Vapors. You skip your next turn. Any player may activate this ability.

Target creature you control gains indestructible until end of turn. Draw a card if that creature has a +1/+1 counter on it. (Damage and effects that say "destroy" don't destroy the creature.)

Enchant creature

Whenever an opponent casts a creature spell, put a +1/+1 counter on enchanted creature.

Whenever a creature you control becomes tapped, you may put a quest counter on Quest for Renewal.

As long as there are four or more quest counters on Quest for Renewal, untap all creatures you control during each other player's untap step.

Whenever equipped creature attacks, it gains deathtouch until end of turn.

Whenever equipped creature attacks alone, defending player loses 2 life and you gain 2 life.

Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Landfall -- Whenever a land enters the battlefield under your control, put a +1/+1 counter on target creature or Vehicle you control.

Channel -- {X}{G}{G}, Discard Roaring Earth: Put X +1/+1 counters on target land you control. It becomes a 0/0 green Spirit creature with haste. It's still a land.

Exile target artifact or enchantment. Put X +1/+1 counters on target creature you control, where X is the mana value of the permanent exiled this way.

Whenever a permanent an opponent controls is put into a graveyard from the battlefield, put a +1/+1 counter on Sarulf, Realm Eater.

At the beginning of your upkeep, if Sarulf has one or more +1/+1 counters on it, you may remove all of them. If you do, exile each other nonland permanent with mana value less than or equal to the number of counters removed this way.

Enchant creature

Enchanted creature has "Whenever this creature deals combat damage to a player, you may draw a card."

Put a +1/+1 counter on target creature you control. It gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

Target creature gets +1/+3 until end of turn. Put a reach counter on it. Untap it.

Bolster X, where X is the number of cards in your hand. Each creature you control with a +1/+1 counter on it gains trample until end of turn. (To bolster X, choose a creature with the least toughness among creatures you control and put X +1/+1 counters on it.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

Whenever a creature enters the battlefield, its controller sacrifices a creature or land.

Until end of turn, target creature gains "When this creature dies, return it to the battlefield tapped under its owner's control with a +1/+1 counter on it."

Put a +1/+1 counter and a lifelink counter on target creature.

Enchant creature

Enchanted creature gets +2/+2 and has flying.

Whenever a creature dealt damage by enchanted creature this turn dies, put a +1/+1 counter on that creature.