Tetravus [Antiquities] Elemental Rogue Clockwork Avian enters the battlefield

Clockwork Avian enters the battlefield with four +1/+0 counters on it

sacrifice Serendib Djinn

Set: Tenth Edition Type: Artifact Rarity: Rare Cost: {5} Each creature gets +1/+1 for each other creature on the battlefield that shares at least one creature type with it

Set: Kaladesh Type: Legendary Land Rarity: Rare At the beginning of your upkeep

as if it had always known

Tetravus [Antiquities] Elemental Rogue Clockwork Avian enters the battlefieldSet: Antiquities Type: Artifact Creature Construct Rarity: Rare Cost: {6} Flying Tetravus enters the battlefield with three +1 +1 counters on it. At the beginning of your upkeep, you may remove any number of +1 +1 counters from Tetravus. If you do, create that many 1 1 colorless Tetravite artifact creature tokens. They each have flying and "This creature can't be enchanted." At the beginning of your upkeep, you may exile any number of tokens created