Pia and Kiran Nalaar is pretty much a value play, while also offering another reach card to push through the last couple points of damage after the board gets clogged up with creatures
How Do Blue Cards Work in MTG
This means that if a toxic creature hits a player, they both take normal damage and get poison counters
There is nothing about the card preventing Day of Judgement users from regenerating their creatures, allowing them a significant leg up on any players caught unaware
Reaver Titan would be a good card to put into a vehicle or artifact deck, along with Belisarius Cawl
From classic tribal builds like Giants, Kithkin, Elves, and Merfolk to more mechanical strategies built around Persist, toughness matters, multicolor protection, and card theft, theres a wide range of compelling options