Every card placed into the inkwell is worth 1 ink, no matter how much it costs to play
It also takes effect instantly and only costs one blue mana, which makes it an amazing way to shake up a game and one-up your opponent in a pinch
I know that being especially in Izzet, an aggressive color combination with low to the curve threats, the card opened up the archetype to become extremely good especially since the printings of absurd Modern Horizons 2 creatures like Ragavan, DRC and Murktide Regent
I dont think this card is particularly strong, but it is relevant in both the early and late game
After Apocalypse is finished, The Behemoth King may charge you, or he may pause his attacks
Equipped creature gets +1/+1 and has double strike and trample