This mechanic shines by reactivating enter-the-battlefield effects, offering repeated value from creatures' abilities
Destroying your opponents 3/3 with your own 2/2 for example
If you have multiple alternative costs to choose from, you may only use any one
The Tier List Putting everything together leaves us with something like this: Invasion of Gobakhan and Invasion of Ikoria are the two best battles, although there's a pretty large A-tier group right behind them that should have an impact on 60-card formats
Sure, it can block one of your opponent's creatures, but you need something to deal with multiple creatures and non-creature threats
The Deity also adds a huge amount of devotion to black/green, turning on gods like Nylea, God of the Hunt and Pharika, God of Affliction by itself or adding a huge buff to Gray Merchant of Asphodels draining capabilities