Sliver creatures you control have first strike.

Trample
: The next 1 damage that would be dealt to this creature this turn is dealt to target creature you control instead.

At the beginning of your upkeep, if an opponent controls more lands than you, you may search your library for up to three basic land cards, reveal them, put them into your hand, then shuffle.

You gain 2 life for each Plains you control.

Flying
Whenever two or more creatures you control attack a player, target attacking creature without flying gains flying until end of turn.

When this creature enters, put target card from an opponent's graveyard on the bottom of their library.
Basic landcycling

Cleave
Lantern Flare deals X damage to target creature or planeswalker and you gain X life. [X is the number of creatures you control.]

Rally — Whenever this creature or another Ally you control enters, creatures you control gain lifelink until end of turn.

Counter target spell. If that spell is countered this way, put it on top of its owner's library instead of into that player's graveyard.

If you control a Plains, you may tap an untapped creature you control rather than pay this spell's mana cost.
Enchant creature
Enchanted creature has first strike.

When this enchantment enters, draw a card.
If a source would deal damage to a creature you control, it deals that much damage minus 1 to that creature instead.

When this enchantment enters, exile target nonland permanent an opponent controls until this enchantment leaves the battlefield.
When this enchantment enters, create a 1/1 red Mercenary creature token with ": Target creature you control gets +1/+0 until end of turn. Activate only as a sorcery."

Exile target creature with power 2 or less. Its controller gains 4 life.

Return target creature card from your graveyard to the battlefield. Create a Food token.

Strive — This spell costs more to cast for each target beyond the first.
Until end of turn, any number of target creatures each gain "Whenever this creature attacks, create a 1/1 white Soldier creature token that's tapped and attacking."

As this creature enters, choose odd or even. (Zero is even.)
This creature has protection from each mana value of the chosen quality.

, Sacrifice this creature: Exile target red creature.

, : Tap target creature with mana value 2 or greater.

Exile target creature with mana value less than or equal to the number of Plains you control. Its controller gains 3 life.

First strike
When Layla Hassan enters and whenever one or more Assassins you control deal combat damage to a player, return target historic card from your graveyard to your hand.

Tap up to two target creatures.

(Gain the next level as a sorcery to add its ability.)
Whenever you attack, put a +1/+1 counter on target attacking creature.
: Level 2
Whenever a creature you control leaves the battlefield, if it had a counter on it, you gain 2 life.
: Level 3
Whenever you cast a spell, put a +1/+1 counter on each creature you control.

Choose two letters. Put a +1/+1 counter on each creature you control whose name begins with either of the chosen letters.

Target creature gains flying until end of turn. Prevent all damage that would be dealt to that creature this turn.

Radiance — Destroy target enchantment and each other enchantment that shares a color with it.

Target player loses all poison counters. Leeches deals that much damage to that player.

Flying
When this creature enters, you may reveal a card you own named Legion Angel from outside the game and put it into your hand.

When this creature enters, you may search your library for any number of cards named Legion Conquistador, reveal them, put them into your hand, then shuffle.