Don't Have

Injector Crocodile

When this creature dies, incubate 3. (Create an Incubator token with three +1/+1 counters on it and "{2}: Transform this token." It transforms into a 0/0 Phyrexian artifact creature.)
Swampcycling {2} ({2}, Discard this card: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle.)

Hagra Crocodile

This creature can't block.
Landfall — Whenever a land you control enters, this creature gets +2/+2 until end of turn.

Skeletal Crocodile

Have

Scuttlegator

Defender
{6}{G/U}{G/U}: Adapt 3. (If this creature has no +1/+1 counters on it, put three +1/+1 counters on it.)
As long as this creature has a +1/+1 counter on it, it can attack as though it didn't have defender.

Don't Remember

Catacomb Crocodile

Emperor Crocodile

When you control no other creatures, sacrifice this creature.

Vivien's Crocodile

This creature gets +1/+1 as long as you control a Vivien planeswalker.

Marsh Crocodile

When this creature enters, return a blue or black creature you control to its owner's hand.
When this creature enters, each player discards a card.

Lurking Crocodile

Bloodthirst 1 (If an opponent was dealt damage this turn, this creature enters with a +1/+1 counter on it.)
Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Sandbar Crocodile

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.)

Rootwater Alligator

Sacrifice a Forest: Regenerate this creature.

Wardscale Crocodile

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Stonefare Crocodile

{2}{B}: This creature gains lifelink until end of turn. (Damage dealt by this creature also causes you to gain that much life.)

Dross Crocodile

Adorned Crocodile

When this creature dies, create a 2/2 black Zombie Druid creature token.
Renew — {B}, Exile this card from your graveyard: Put a +1/+1 counter on target creature. Activate only as a sorcery.

Cat-Gator

Lifelink
When this creature enters, it deals damage equal to the number of Swamps you control to any target.

Sewer Crocodile

{3}{U}: This creature can't be blocked this turn. This ability costs {3} less to activate if there are five or more mana values among cards in your graveyard.

Veiled Crocodile

When a player has no cards in hand, if this permanent is an enchantment, it becomes a 4/4 Crocodile creature.

Crocodile of the Crossing

Haste
When this creature enters, put a -1/-1 counter on target creature you control.