Reach

: Monstrosity 3. <i>(If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.)</i>

When Arbor Colossus becomes monstrous, destroy target creature with flying an opponent controls.

Trample, infect, indestructible

If Blightsteel Colossus would be put into a graveyard from anywhere, reveal Blightsteel Colossus and shuffle it into its owner's library instead.

: Untap target land.

: Add two mana of any one color.

Nightbound <i>(If a player casts at least two spells during their own turn, it becomes day next turn.)</i>

You gain hexproof until your next turn. You gain 2 life.

Rebound <i>(If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)</i>

Blossoming Sands enters the battlefield tapped.

When Blossoming Sands enters the battlefield, you gain 1 life.

: Add or .

Changeling <i>(This card is every creature type.)</i>

Protection from black

: Chameleon Colossus gets +X/+X until end of turn, where X is its power.

When Colossal Badger enters the battlefield, you gain 3 life.

Kicker <i>(You may pay an additional as you cast this spell.)</i>

Target creature gets +3/+3 until end of turn. If this spell was kicked, instead that creature gets +4/+4 and gains trample and haste until end of turn.

At the beginning of your upkeep, if you control a creature with power 4 or greater, draw a card.

Whenever Colossal Plow attacks, add and you gain 3 life. Until end of turn, you don't lose this mana as steps and phases end.

Crew 6 <i>(Tap any number of creatures you control with total power 6 or more: This Vehicle becomes an artifact creature until end of turn.)</i>

Islandwalk <i>(This creature can't be blocked as long as defending player controls an Island.)</i>

Whenever Colossal Whale attacks, you may exile target creature defending player controls until Colossal Whale leaves the battlefield. <i>(That creature returns under its owner's control.)</i>

Enchant creature

When Colossification enters the battlefield, tap enchanted creature.

Enchanted creature gets +20/+20.

Target creature gets +4/+2 and gains trample until end of turn.

Defender, indestructible

0: Monstrosity 10. <i>(If this creature isn't monstrous, put ten +1/+1 counters on it and it becomes monstrous.)</i>

As long as Colossus of Akros is monstrous, it has trample and can attack as though it didn't have defender.

Trample <i>(This creature can deal excess combat damage to the player or planeswalker it's attacking.)</i>

When Crumbling Colossus attacks, sacrifice it at end of combat.

Casualty 2 <i>(As you cast this spell, you may sacrifice a creature with power 2 or greater. When you do, copy this spell and you may choose a new target for the copy.)</i>

Target player mills half their library, rounded down.

Depth Charge Colossus doesn't untap during your untap step.

: Untap Depth Charge Colossus.

//PRT-Prototype_Mech//

Prototype <i>(You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.)</i>

6/6

Diregraf Colossus enters the battlefield with a +1/+1 counter on it for each Zombie card in your graveyard.

Whenever you cast a Zombie spell, create a tapped 2/2 black Zombie creature token.

Tap an untapped Wizard you control: Return target nonland permanent you don't control to its owner's hand.

Morph <i>(You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)</i>

At the beginning of your upkeep, you may put a petal counter on Lotus Blossom.

, Sacrifice Lotus Blossom: Add X mana of any one color, where X is the number of petal counters on Lotus Blossom.

This spell costs less to cast, where X is the total mana value of noncreature artifacts you control.

Sacrifice two artifacts: Return Metalwork Colossus from your graveyard to your hand.

As Necroblossom Snarl enters the battlefield, you may reveal a Swamp or Forest card from your hand. If you don't, Necroblossom Snarl enters the battlefield tapped.

: Add or .

Renown 6 <i>(When this creature deals combat damage to a player, if it isn't renowned, put six +1/+1 counters on it and it becomes renowned.)</i>

Outland Colossus can't be blocked by more than one creature.

Phyrexian Colossus doesn't untap during your untap step.

Pay 8 life: Untap Phyrexian Colossus.

Phyrexian Colossus can't be blocked except by three or more creatures.

When Quarry Colossus enters the battlefield, put target creature into its owner's library just beneath the top X cards of that library, where X is the number of Plains you control.

Trample, haste

Crew 2 <i>(Tap any number of creatures you control with total power 2 or more: This Vehicle becomes an artifact creature until end of turn.)</i>

Defender

When Wall of Blossoms enters the battlefield, draw a card.

Convoke <i>(Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)</i>

Worldsoul Colossus enters the battlefield with X +1/+1 counters on it.