pokemon arceus trainer card - Arezu Pokémon TCG Japan's Battle Region

Parallax Tide, Parallax Wave, and Opalescence allow us to generate infinite landfalls (remove lands with tide, remove tide with wave, remove wave with wave, recycle - this also generates infinite mana since you can tap the lands as they enter)

This card is primarily the reason why youre so restricted on what non-blue cards you can play (Force of Will being a distant secondary reason), so your hands are a little tied in the deckbuilding process, but again, your options are pretty low here

And finally, you can, of course, respond to the sacrifice trigger

this Leafeon ex is no delicate leaf

+1/+1 counter archetypes are extremely popular in these colors, and both Wave Goodbye and Tributary Instructor should be immediate inclusions for the majority of those decks

Sometimes we've had great applications of it, like in Modern Horizons 2 and Commander Legends, and other times it's been hard to notice, like in Strixhaven's Mystical Archive