Jeskai Control

Legendary Creature — Elemental Elk

When Beza enters, create a Treasure token if an opponent controls more lands than you. You gain 4 life if an opponent has more life than you. Create two 1/1 blue Fish creature tokens if an opponent controls more creatures than you. Draw a card if an opponent has more cards in hand than you.

P/T: 4/5

Instant

Counter target spell unless its controller pays {3}. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

Instant

Spree (Choose one or more additional costs.) + {1}{U} — Counter target spell. + {3} — Create a token that's a copy of target artifact or creature you control. + {2} — Draw two cards, then discard a card.

Instant

Destroy target creature, enchantment, or planeswalker. Its controller creates two Map tokens. (They're artifacts with "{1}, {T}, Sacrifice this token: Target creature you control explores. Activate only as a sorcery.")

Instant

Lightning Helix deals 3 damage to any target and you gain 3 life.

Instant

Spree (Choose one or more additional costs.) + {3} — Create a 2/2 white Spirit creature token with flying. + {1} — Counter target spell unless its controller pays {2}.

Instant

Look at the top X cards of your library, where X is the amount of mana spent to cast this spell. Put two of them into your hand and the rest on the bottom of your library in a random order. Flashback {5}{U}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Sorcery

Look at the top five cards of your library. Put two of them into your hand and the rest on the bottom of your library in any order.

Sorcery

Exile all creatures. Incubate X, where X is the number of creatures exiled this way. (Create an Incubator token with X +1/+1 counters on it and "{2}: Transform this token." It transforms into a 0/0 Phyrexian artifact creature.)

Sorcery

Destroy all creatures.

Enchantment

When this enchantment enters, exile each nonland permanent with mana value 2 or less until this enchantment leaves the battlefield.

Enchantment — Saga

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — Exile target permanent an opponent controls with mana value 3 or greater. II — Noncreature spells your opponents cast cost {2} more to cast until your next turn. III — Return target creature or planeswalker card from your graveyard to the battlefield. Put a +1/+1 counter or a loyalty counter on it.

Land — Plains Island

({T}: Add {W} or {U}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

Land — Mountain Plains

({T}: Add {R} or {W}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

Land — Island Mountain

({T}: Add {U} or {R}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

Land — Plains Island

({T}: Add {W} or {U}.) This land enters tapped. When this land enters, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Land

This land enters tapped. {T}: Add {W} or {U}. {1}{W}{U}: Until end of turn, this land becomes a 2/3 white and blue Bird creature with flying. It's still a land. Whenever this land attacks, create a Map token.

Land

{T}: Add {C}. {W/U}, {T}: Add {W}{W}, {W}{U}, or {U}{U}.

Land

This land enters tapped unless you control two or fewer other lands. {T}: Add {R} or {W}.

Land

This land enters tapped unless you control two or fewer other lands. {T}: Add {U} or {R}.

Legendary Land

{T}: Add {W}. Channel — {2}{W}, Discard this card: It deals 4 damage to target attacking or blocking creature. This ability costs {1} less to activate for each legendary creature you control.

Basic Land — Plains

({T}: Add {W}.)

Basic Land — Island

({T}: Add {U}.)