Fanatic of Xenagos

Trample
Tribute 1 (As this creature enters the battlefield, an opponent of your choice may put a +1/+1 counter on it.)
When Fanatic of Xenagos enters the battlefield, if tribute wasn’t paid, it gets +1/+1 and gains haste until end of turn.

Dragonlord Atarka

Flying, trample
When Dragonlord Atarka enters the battlefield, it deals 5 damage divided as you choose among any number of target creatures and/or planeswalkers your opponents control.

Avatar of the Resolute

Reach, trample
Avatar of the Resolute enters the battlefield with a +1/+1 counter on it for each other creature you control with a +1/+1 counter on it.

Stormcrag Elemental

Trample
Megamorph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)

Avatar of the Resolute

Reach, trample
Avatar of the Resolute enters the battlefield with a +1/+1 counter on it for each other creature you control with a +1/+1 counter on it.

Dragonlord Atarka

Flying, trample
When Dragonlord Atarka enters the battlefield, it deals 5 damage divided as you choose among any number of target creatures and/or planeswalkers your opponents control.

Herdchaser Dragon

Flying, trample
Megamorph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)
When Herdchaser Dragon is turned face up, put a +1/+1 counter on each other Dragon creature you control.

Sabertooth Outrider

Trample
Formidable — Whenever Sabertooth Outrider attacks, if creatures you control have total power 8 or greater, Sabertooth Outrider gains first strike until end of turn.

Kolaghan Forerunners

Trample
Kolaghan Forerunners’s power is equal to the number of creatures you control.
Dash (You may cast this spell for its dash cost. If you do, it gains haste, and it’s returned from the battlefield to its owner’s hand at the beginning of the next end step.)

Inkwell Leviathan

Trample
Islandwalk (This creature can’t be blocked as long as defending player controls an Island.)
Shroud (This creature can’t be the target of spells or abilities.)

Simic Sky Swallower

Flying, trample
Shroud (This creature can’t be the target of spells or abilities.)

Atarka, World Render

Flying, trample
Whenever a Dragon you control attacks, it gains double strike until end of turn.

Yasova Dragonclaw

Trample
At the beginning of combat on your turn, you may pay . If you do, gain control of target creature an opponent controls with power less than Yasova Dragonclaw’s power until end of turn, untap that creature, and it gains haste until end of turn.

Lightning Shrieker

Flying, trample, haste
At the beginning of the end step, Lightning Shrieker’s owner shuffles it into their library.

Ambush Krotiq

Trample
When Ambush Krotiq enters the battlefield, return another creature you control to its owner’s hand.

Atarka, World Render

Flying, trample
Whenever a Dragon you control attacks, it gains double strike until end of turn.

Yasova Dragonclaw

Trample
At the beginning of combat on your turn, you may pay . If you do, gain control of target creature an opponent controls with power less than Yasova Dragonclaw’s power until end of turn, untap that creature, and it gains haste until end of turn.

Sylvan Messenger

Trample (This creature can deal excess combat damage to the player or planeswalker it’s attacking.)
When Sylvan Messenger enters the battlefield, reveal the top four cards of your library. Put all Elf cards revealed this way into your hand and the rest on the bottom of your library in any order.

Heedless One

Trample
Heedless One’s power and toughness are each equal to the number of Elves on the battlefield.

Lord of the Pit

Flying, trample
At the beginning of your upkeep, sacrifice a creature other than Lord of the Pit. If you can’t, Lord of the Pit deals 7 damage to you.

Stampeding Wildebeests

Trample (This creature can deal excess combat damage to the player or planeswalker it’s attacking.)
At the beginning of your upkeep, return a green creature you control to its owner’s hand.