one piece tcg katakuri deck ST-20 Starter Deck: Yellow this Character gains [Rush] during this turn Katakuri Leader OP03 Discussion :

Soul of Zendikars Beast tokens can trigger Packleader, so if we have nothing else to do with our mana, we can still progress our board and keep drawing into monsters

The same is true of Modern Elements deck that plays Fury, Solitude, and the like

Instead of playing your Characters in the Active state, from now on, youll play your Characters rested

Even if your opponents decide to play around it by keeping Nykthos, Shrine to Nyx, and two other lands, that means theyre missing land drops

Otherwise, it gives you a creature a simple stat boost

While a Scorpion God deck would likely be constructed to contain numerous effects that put -1/-1 counters on creatures, in case one is ever in need, for three mana, The Scorpion God can put a -1/-1 counter on a creature at any time