When Avatar of Brilliance enters, you may cast target instant or sorcery card in your graveyard with mana value X or less without paying its mana cost, where X is the number of differently named lands you control. If that spell would be put into your graveyard this turn, exile it instead.

Flying
Drop — Whenever Avatar of the Airwaves or another creature you control enters, if the entering creature was cast and you didn't cast any creature spells during your last turn, create a token that's a copy of target non-Avatar creature you control.

Menace
Drop — Whenever Avatar of the Decks or another creature you control enters, if the entering creature was cast, sacrifice a permanent unless you didn't cast any creature spells during your last turn.

Haste
Drop — Whenever Avatar of the Moshpit or another creature you control enters, if the entering creature was cast and you didn't cast any creature spells during your last turn, discard your hand, then draw three cards.

Reach
Drop — Whenever Avatar of the Rave or another creature you control enters, if the entering creature was cast and you didn't cast any creature spells during your last turn, return up to two target cards from your graveyard to your hand.

When Bangtan Security enters, target creature gets +2/+0 and gains indestructible until end of turn.

Reach, haste
Drop — When Beat Devastator enters, if you didn't cast any creature spells during your last turn, Beat Devastator gains vigilance until end of turn. Up to one target creature blocks it this turn if able.

When Beatswitch Bot leaves the battlefield, if it's your turn, draw a card.

Flying
Whenever you amp it up, create a 1/1 colorless Servo artifact creature token.

{4}{B}{B}, Exile Begin the Imperial Era from your hand: At the beginning of your next upkeep, you may cast Begin the Imperial Era from exile without paying its mana cost. Activate only as a sorcery.
You draw three cards and each opponent discards three cards. Each player loses 3 life.

Creatures you control with power greater than their base power can't be blocked by more than one creature.
{G}{W}: Target creature gets +1/+1 until end of turn. Activate only as a sorcery.

Ward {X}, where X is the number of differently named lands you control.

Haste
Whenever you amp it up, put a +1/+1 counter on Breakbot. It gains first strike until end of turn.

{VP}{VP}{VP}, Sacrifice Bright-Lights Terrier: Creatures you control gain indestructible until end of turn.

{1}{W}{W}, Exile Bring the House Down from your hand: At the beginning of your next upkeep, you may cast Bring the House Down from exile without paying its mana cost. Activate only as a sorcery.
Destroy all creatures.

Drop — When Bumping Betta enters, if you didn't cast any creature spells during your last turn, return up to one target nonland permanent to its owner's hand.

Choose one —
• Search your library for a land card, put it onto the battlefield tapped, then shuffle.
• Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.

Burn Rubber deals 1 damage to each creature your opponents control. Creatures your opponents control can't block this turn.

Target creature you control gets +2/+0 and gains lifelink until end of turn. When that creature dies this turn, draw a card.

Flash
Enchant creature
When Capture Sphere enters, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.

This spell costs {1} less to cast for each creature that died this turn.
{2}, Sacrifice a creature: Choose one —
• Each opponent loses 2 life.
• Caustic Influencer gets +2/+2 until end of turn.

Enchant creature
Enchanted creature can't attack or block.
Whenever enchanted creature's controller amps it up, sacrifice Censor's Sanction and create a 1/1 colorless Servo artifact creature token.

Whenever Chamille, AAA-Lister attacks, target nonlegendary creature can't block it this turn.
Whenever Chamille deals combat damage to a player, put a +1/+1 counter on it, then create a Treasure token for each counter on it.

Choose one —
• Destroy target artifact or enchantment.
• Return target permanent card from your graveyard to your hand.

Drop — When Club Promoter enters, choose one. If you didn't cast any creature spells during your last turn, you may choose both instead.
• Destroy target artifact or enchantment.
• Put two +1/+1 counters on Club Promoter.