Whenever this Subroutine runs, search your library for a basic land card, put it onto the battlefield, then shuffle.

{X}{U}: Draw X cards. Activate only if this Subroutine ran this turn.

Choose one or both —
• Target creature gets +1/+1 until end of turn.
• Return target creature to its owner's hand.

Saboteur's Immolation deals 2 damage to each creature.
Cycling {2}

Whenever you discard a nonland card, copy it. You may cast the copy without paying its mana cost.

[+1]: Up to one target nonland permanent gets -1/-1 and loses all abilities until your next turn.
[0]: Target creature you control gets +2/+2 and gains lifelink until your next turn.
[–1]: Each player discards a card. Then you may pay 2 life. If you do, draw a card.
[–3]: You and target opponent's life totals each become equal to half your combined life totals, rounded down.

{T}: Each player draws a card.
{1}, {T}: Each player draws two cards.
{2}, {T}: Each player draws three cards.

Whenever you attack, defending player loses 2 life and you gain 2 life.

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

As an additional cost to cast this spell, exile X cards from your graveyard.
You draw X cards and gain X life, then each opponent loses X life.

Players can't gain life.
Whenever a player casts a spell, Scathing Remarks deals 1 damage to that player for each of that spell's colors.

Scry 2, then draw a card.
Flashback {4}{U}

When this enchantment enters, create a tapped Treasure token.
At the beginning of your upkeep, exile the top three cards of your library. Until end of turn, you may cast each of those cards by sacrificing a permanent in addition to paying their other costs.

Double target creature's power and toughness until end of turn.
Flashback {1}{G}

Enchant creature
Enchanted creature gets -1/-1.
Sacrifice an artifact: Destroy enchanted creature. Activate only as a sorcery.

When Sea Breeze enters, return up to one target creature to its owner's hand, then surveil 1.

Look at the top two cards of your library. Put one into your hand and the other into your graveyard.
Surface {2}{U}

Flash
When Seal Away enters, exile target tapped creature an opponent controls until Seal Away leaves the battlefield.

At the beginning of each end step, create a 2/2 white and blue Seal Orb creature token if you activated two or more nonmana abilities this turn.
{W}{U}: Scry 1. You gain 1 life.

When this enchantment enters, exile target nonland permanent an opponent controls until this enchantment leaves the battlefield.
Cycling {2}

Target player reveals their hand. You may choose a nonland card from it. If you do, that player discards that card. Otherwise, draw a card.

This spell costs {2} less to cast if you've activated a nonmana ability this turn.
Searing Grace deals 3 damage to any target.

Secluded Hangar enters tapped unless you control a basic non-Forest land.
{T}: Add {G}.
{2}, {T}: Put a +1/+1 counter on target creature that entered this turn.

Exile all creatures you don't control. Then return those cards to the battlefield tapped under their owners' control unless you've cast another spell named Second Crown's Fall this game. Then exile Second Crown's Fall.

Whenever this enchantment or another nonland, nontoken permanent you control enters, if it wasn't cast, draw a card. You may put a land card from your hand onto the battlefield tapped.
Creatures you control with power or toughness 1 or less can't be blocked.