Lands you control have "{T}: Add one mana of any color." {T}: Add one mana of any color.

You may pay {W}{U}{B}{R}{G} rather than pay the mana cost for spells you cast.

As Herald's Horn enters the battlefield, choose a creature type. Creature spells you cast of the chosen type cost {1} less to cast. At the beginning of your upkeep, look at the top card of your library. If it's a creature card of the chosen type, you may reveal it and put it into your hand.

Trample When Armada Wurm enters the battlefield, create a 5/5 green Wurm creature token with trample.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Trample

Wurms you control get +2/+2 and have trample. {7}{G}, {T}: Create a 4/4 green Wurm creature token. This ability costs {X} less to activate, where X is the greatest power among Wurms you control.

Whenever Carrion Wurm attacks or blocks, any player may exile three cards from their graveyard. If a player does, Carrion Wurm assigns no combat damage this turn.

You may have Deathcoil Wurm assign its combat damage as though it weren't blocked.

Backup 3 (When this creature enters the battlefield, put three +1/+1 counters on target creature. If that's another creature, it gains the following ability until end of turn.) Whenever this creature attacks, look at the top X cards of your library, where X is its power. You may put a permanent card with mana value X or less from among them onto the battlefield. Put the rest on the bottom of your library in a random order.

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

When Massacre Wurm enters the battlefield, creatures your opponents control get -2/-2 until end of turn. Whenever a creature an opponent controls dies, that player loses 2 life.

Whenever Novablast Wurm attacks, destroy all other creatures.

When Symbiotic Wurm dies, create seven 1/1 green Insect creature tokens.

Phasing (This phases in or out before you untap during each of your untap steps. While it's phased out, it's treated as though it doesn't exist.) At the beginning of your upkeep, Warping Wurm phases out unless you pay {2}{G}{U}. Whenever Warping Wurm phases in, put a +1/+1 counter on it.

Water Wurm gets +0/+1 as long as an opponent controls an Island.

Trample Whenever Charnelhoard Wurm deals damage to an opponent, you may return target card from your graveyard to your hand.

Riot (This creature enters the battlefield with your choice of a +1/+1 counter or haste.) When Ravager Wurm enters the battlefield, choose up to one — • Ravager Wurm fights target creature you don't control. • Destroy target land with an activated ability that isn't a mana ability.

Whenever Segmented Wurm becomes the target of a spell or ability, put a -1/-1 counter on it.

Trample When Shivan Wurm enters the battlefield, return a red or green creature you control to its owner's hand.