It makes creatures that share a color unable to block creatures of a given color for one turn
Second, there are ways to earn card boosters through normal play but it can take a while to grab much beyond single packs
Providing massive mana outlay and being a meaty 5/5 give Jegantha two distinct and useful modes, that of fatty and that of huge mana output
If youre trying to build your own proxy deck that feels closer to the real thing, this gives you concrete targets: gsm range, thickness, blue or black core, and a smooth, durable finish
Abzan has endure, where when something endures, you have the choice to either add an x +1 counter to the creature or create a spirit with x power and toughness
This helps cast double- or triple-piped spells consistently, which is especially important for decks built around the top blue cards in MTG that demand precise color access