Tetravus (Italian) [Rinascimento] WTR117-C Whenever another player casts a

Whenever another player casts a spell from anywhere other than their hand

At the beginning of your end phase

Set: March of the Machine Type: Legendary Artifact Rarity: Rare Cost: {1}{G} If one or more +1/+1 counters would be put on an artifact or creature you control

Set: Unfinity Type: Artifact — Vehicle Rarity: Rare Cost: {X} When Clown Car enters the battlefield

If you don't

Tetravus (Italian) [Rinascimento] WTR117-C Whenever another player casts aSet: Rinascimento Type: Artifact Creature Construct Rarity: Uncommon 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