({T}: Add {R}.)

Whenever a creature enters the battlefield under your control, Impact Tremors deals 1 damage to each opponent.

As Outpost Siege enters the battlefield, choose Khans or Dragons. • Khans — At the beginning of your upkeep, exile the top card of your library. Until end of turn, you may play that card. • Dragons — Whenever a creature you control leaves the battlefield, Outpost Siege deals 1 damage to any target.

Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.) Artifacts and creatures your opponents control enter the battlefield tapped.

Search your library for a card, put that card into your hand, discard a card at random, then shuffle.

Creatures your opponents control enter the battlefield tapped. Whenever a creature enters the battlefield under an opponent's control, you gain 1 life.

At the beginning of your end step, draw a card if your life total is greater than your starting life total. Otherwise, you gain 2 life.

Target creature becomes red and gains haste until end of turn. Draw a card.

Whenever you gain life, you may pay {2}. If you do, draw a card. {3}{W}: Create a 1/1 white Soldier creature token with lifelink.

Whenever an opponent casts their first noncreature spell each turn, draw a card unless that player pays {X}, where X is Esper Sentinel's power.

Target creature gains haste until end of turn. Draw a card.

Artifacts, creatures, and lands your opponents control enter the battlefield tapped.

Whenever another creature with power 2 or less enters the battlefield under your control, you may pay {1}. If you do, draw a card.

When Recruiter of the Guard enters the battlefield, you may search your library for a creature card with toughness 2 or less, reveal it, put it into your hand, then shuffle.

Target creature can't block this turn. Draw a card.

Whenever Saradoc, Master of Buckland or another nontoken creature with power 2 or less enters the battlefield under your control, create a 1/1 white Halfling creature token. Tap two other untapped Halflings you control: Saradoc gets +2/+0 and gains lifelink until end of turn.

Whenever another creature enters the battlefield under your control, you may gain 1 life. Whenever a creature enters the battlefield under an opponent's control, you may have that player lose 1 life.

Creatures you control get +1/+1. Whenever a creature enters the battlefield under your control, Warleader's Call deals 1 damage to each opponent.

Whenever a creature enters the battlefield under your control, it deals damage equal to its power to any target.