MTG WBRG Control Deck by Matsukasa10

Flash {1}, Sacrifice this creature: Destroy target artifact or enchantment.

This spell costs {1} less to cast for each Cave you control and each Cave card in your graveyard. Lifelink

When this enchantment enters and whenever you cast a spell with mana value 5 or greater, draw a card.

When this enchantment enters, create a 1/1 black Bat creature token with flying for each mana from a Cave spent to cast it. Whenever a Cave you control enters, put a +1/+1 counter on target creature you control.

Exile target creature if it has mana value 3 or less. Corrupted — Exile that creature instead if its controller has three or more poison counters.

This spell costs {3} less to cast if it targets a tapped permanent. Exile target creature or Vehicle.

Calamitous Cave-In deals X damage to each creature and each planeswalker, where X is the number of Caves you control plus the number of Cave cards in your graveyard.

This land enters tapped. {T}: Add {W}. {4}{W}, {T}, Sacrifice this land: Discover 4. Activate only as a sorcery. (Exile cards from the top of your library until you exile a nonland card with mana value 4 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)

({T}: Add {W}.)

This land enters tapped. {T}: Add {B}. {4}{B}, {T}, Sacrifice this land: Discover 4. Activate only as a sorcery. (Exile cards from the top of your library until you exile a nonland card with mana value 4 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)

({T}: Add {B}.)

This land enters tapped. {T}: Add {R}. {4}{R}, {T}, Sacrifice this land: Discover 4. Activate only as a sorcery. (Exile cards from the top of your library until you exile a nonland card with mana value 4 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)

({T}: Add {R}.)

({T}: Add {G}.)

This land enters tapped. {T}: Add {G}. {4}{G}, {T}, Sacrifice this land: Discover 4. Activate only as a sorcery. (Exile cards from the top of your library until you exile a nonland card with mana value 4 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)

{T}: Add {C}. {1}, {T}: Add one mana of any color. {4}, {T}, Sacrifice this land: Put two +1/+1 counters on target creature. Activate only as a sorcery.

{T}: Add {C}. {2}: This land becomes a 3/3 Elemental creature until end of turn. It's still a Cave land. Activate only if the number of other Caves you control plus the number of Cave cards in your graveyard is three or greater.

{T}: Add {C}. Other Caves you control have "{T}, Pay 1 life: Add one mana of any color."

{T}: Add {C}. {1}, {T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.