Defender, vigilance, reach, trample

Weathered Sentinels can attack players who attacked you during their last turn as though it didn't have defender.

Whenever Weathered Sentinels attacks, it gets +3/+3 and gains indestructible until end of turn.

At the beginning of your end step, put an invitation counter on Wedding Announcement. If you attacked with two or more creatures this turn, draw a card. Otherwise, create a 1/1 white Human creature token. Then if Wedding Announcement has three or more invitation counters on it, transform it.

Flying

Ward—Discard a card. (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player discards a card.)

Whenever Westgate Regent deals combat damage to a player, put that many +1/+1 counters on it.

Whenever a creature you control with power 5 or greater enters, you may have Where Ancients Tread deal 5 damage to any target.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)

Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.

At the beginning of your end step, manifest the top card of your library. (Put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.)

Sacrifice Whisperwood Elemental: Until end of turn, face-up nontoken creatures you control gain "When this creature dies, manifest the top card of your library."

Trample

Wilderness Elemental's power is equal to the number of nonbasic lands your opponents control.

Whenever a token you control enters, put a +1/+1 counter on Wildwood Mentor.

Whenever Wildwood Mentor attacks, another target attacking creature gets +X/+X until end of turn, where X is Wildwood Mentor's power.

Vigilance

Wingshield Agent enters with a shield counter on it. (If it would be dealt damage or destroyed, remove a shield counter from it instead.)

Whenever Wingshield Agent attacks, up to one other target creature gains flying until end of turn.

Winter's Intervention deals 2 damage to target creature. You gain 2 life.

Destroy target creature or enchantment. You lose 2 life.

Multikicker (You may pay an additional any number of times as you cast this spell.)

When Wolfbriar Elemental enters, create a 2/2 green Wolf creature token for each time it was kicked.

Trample

Parley — Whenever Woodvine Elemental attacks, each player reveals the top card of their library. For each nonland card revealed this way, attacking creatures you control get +1/+1 until end of turn. Then each player draws a card.

Xantcha, Sleeper Agent enters under the control of an opponent of your choice.

Xantcha attacks each combat if able and can't attack its owner or planeswalkers its owner controls.

: Xantcha's controller loses 2 life and you draw a card. Any player may activate this ability.

: Yavimaya Ancients gets +1/-2 until end of turn.

, : Choose target enchantment you control that doesn't have the same name as another permanent you control. Create a token that's a copy of it, except it isn't legendary. If the token is an Aura, untap Yenna, Redtooth Regent, then scry 2. Activate only as a sorcery.

Whenever you tap a land for mana, add one mana of any type that land produced. (The types of mana are white, blue, black, red, green, and colorless.)

Whenever you cast a creature spell, draw a card.

Whenever Zhentarim Bandit attacks, you may pay 1 life. If you do, create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

For each player, choose friend or foe. Each friend creates a token that's a copy of a creature they control. Each foe returns a creature they control to its owner's hand.