Pioneer

Garrison Sergeant has double strike as long as you control a Gate.

Whenever you cast an instant or sorcery spell, put a charge counter on Firemind's Research. {1}{U}, Remove two charge counters from Firemind's Res...

Etrata, the Silencer can't be blocked. Whenever Etrata deals combat damage to a player, exile target creature that player controls and put a hit c...

Vigilance When Intrusive Packbeast enters the battlefield, tap up to two target creatures your opponents control.

Discard a creature card: Erstwhile Trooper gets +2/+2 and gains trample until end of turn. Activate only once each turn.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)

As long as you've surveilled this turn, Darkblade Agent has deathtouch and "Whenever this creature deals combat damage to a player, you draw a card."

Whenever Inspiring Unicorn attacks, creatures you control get +1/+1 until end of turn.

Target opponent reveals their hand. You choose a nonland card from it. That player discards that card. Surveil 1. (Look at the top card of your lib...

Haste Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.) Prevent all noncombat damage t...

When Centaur Peacemaker enters the battlefield, each player gains 4 life.

Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.) {2}{R}{W}: Boros Challenger gets +1/+1...

Vigilance

Undergrowth — When Vigorspore Wurm enters the battlefield, target creature gains vigilance and gets +X/+X until end of turn, where X is the number ...

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color....

Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.)

Defender (This creature can't attack.) {2}, {T}, Sacrifice a creature with defender: Draw a card.

Undergrowth — When Kraul Foragers enters the battlefield, you gain 1 life for each creature card in your graveyard.

Reach

Defender, reach {4}{G}: Grappling Sundew gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy this creature.)

Whenever Haazda Marshal and at least two other creatures attack, create a 1/1 white Soldier creature token with lifelink.

When Generous Stray enters the battlefield, draw a card.

{4}{G}: Devkarin Dissident gets +2/+2 until end of turn.