Abzan Kin-Guard has lifelink as long as you control a white or black permanent.

Flying

As long as you control a Human, Angelic Overseer has hexproof and indestructible.

Flying

Arctic Aven gets +1/+1 as long as you control a Plains.

: Arctic Aven gains lifelink until end of turn. (Damage dealt by this creature also causes you to gain that much life.)

As long as you control a red or white permanent, Battle Brawler gets +1/+0 and has first strike.

As long as you control an enchantment, Blood-Cursed Knight gets +1/+1 and has lifelink. (Damage dealt by this creature also causes you to gain that much life.)

Trample

As long as you control another creature, prevent all damage that would be dealt to Bronze Horse by spells that target it.

Cliffrunner Behemoth has haste as long as you control a red permanent.

Cliffrunner Behemoth has lifelink as long as you control a white permanent.

Colossal Rattlewurm has flash as long as you control a Desert.

Trample

, Exile Colossal Rattlewurm from your graveyard: Search your library for a Desert card, put it onto the battlefield tapped, then shuffle.

Crimson Muckwader gets +1/+1 as long as you control a Swamp.

: Regenerate Crimson Muckwader. (The next time this creature would be destroyed this turn, it isn't. Instead tap it, remove all damage from it, and remove it from combat.)

Dauntless River Marshal gets +1/+1 as long as you control an Island.

: Tap target creature.

As long as you control a Dovin planeswalker, Dovin's Automaton gets +2/+2 and has vigilance. (Attacking doesn't cause it to tap.)

Drover of the Mighty gets +2/+2 as long as you control a Dinosaur.

: Add one mana of any color.

Ephara, Ever-Sheltering has lifelink and indestructible as long as you control at least three other enchantments.

Whenever another enchantment enters the battlefield under your control, draw a card.

+1: Until your next turn, prevent all damage target permanent would deal.

0: Until end of turn, Gideon of the Trials becomes a 4/4 Human Soldier creature with indestructible that's still a planeswalker. Prevent all damage that would be dealt to him this turn.

0: You get an emblem with "As long as you control a Gideon planeswalker, you can't lose the game and your opponents can't win the game."

Gravecrawler can't block.

You may cast Gravecrawler from your graveyard as long as you control a Zombie.

Harbor Bandit gets +1/+1 as long as you control an Island.

: Harbor Bandit can't be blocked this turn.

As long as you control a green or blue permanent, you may cast Hungering Yeti as though it had flash. (You may cast it any time you could cast an instant.)

Imperial Lancer has double strike as long as you control a Dinosaur.

As long as you control a Jace planeswalker, Jace's Sentinel gets +1/+0 and can't be blocked.

Kird Ape gets +1/+2 as long as you control a Forest.

Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)

As long as you control a legendary Samurai, Konda's Hatamoto gets +1/+2 and has vigilance. (Attacking doesn't cause this creature to tap.)

Horsemanship (This creature can't be blocked except by creatures with horsemanship.)

Liu Bei, Lord of Shu gets +2/+2 as long as you control a permanent named Guan Yu, Sainted Warrior or a permanent named Zhang Fei, Fierce Warrior.

+1: Exile the top three cards of your library. Creature cards exiled this way gain "You may cast this card from exile as long as you control a Lukka planeswalker."

−2: Exile target creature you control, then reveal cards from the top of your library until you reveal a creature card with higher mana value. Put that card onto the battlefield and the rest on the bottom of your library in a random order.

−7: Each creature you control deals damage equal to its power to each opponent.

Lifelink

Markov Crusader has haste as long as you control another Vampire.

Mobile Homestead has haste as long as you control a Mount.

Whenever Mobile Homestead attacks, look at the top card of your library. If it's a land card, you may put it onto the battlefield tapped.

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

Nightfire Giant gets +1/+1 as long as you control a Mountain.

: Nightfire Giant deals 2 damage to any target.

Prized Elephant gets +1/+1 as long as you control a Forest.

: Prized Elephant gains trample until end of turn. (It can deal excess combat damage to the player or planeswalker it's attacking.)

Vigilance, reach, trample

Ramunap Hydra gets +1/+1 as long as you control a Desert.

Ramunap Hydra gets +1/+1 as long as there is a Desert card in your graveyard.

As long as you control a Chandra planeswalker, Renegade Firebrand gets +1/+0 and has first strike. (It deals combat damage before creatures without first strike.)

All Sliver creatures have "This creature gets +1/+1 as long as you control a Swamp."

All Slivers have ": Regenerate this permanent." (The next time it would be destroyed, instead tap it, remove it from combat, and heal all damage on it.)

As long as you control a Plains, Sejiri Merfolk has first strike and lifelink. (Damage dealt by a creature with lifelink also causes its controller to gain that much life.)

As long as you control a permanent of each color, prevent all damage that would be dealt to you.

Sunblade Elf gets +1/+1 as long as you control a Plains.

: Creatures you control get +1/+1 until end of turn.

Swimmer in Nightmares gets +3/+0 as long as there are ten or more cards in a single graveyard.

Swimmer in Nightmares can't be blocked as long as you control an Ashiok planeswalker.

Tek gets +0/+2 as long as you control a Plains, has flying as long as you control an Island, gets +2/+0 as long as you control a Swamp, has first strike as long as you control a Mountain, and has trample as long as you control a Forest.

Tribal Golem has trample as long as you control a Beast, haste as long as you control a Goblin, first strike as long as you control a Soldier, flying as long as you control a Wizard, and ": Regenerate Tribal Golem" as long as you control a Zombie.