Stage Stage suggests the Pokemons evolution formwhich also deems the card as a valuable asset
Many decks interested in wraths want to play blue anyway, and being uncounterable is way more relevant than preventing regeneration, since its mostly been phased out, and common protection spells use phasing or indestructible
In fact the printing of Unholy Heat (and to an extent Solitude) has mostly pushed out cards like Tarmogoyf out of the format, as the removal in the format is now so efficient that creatures either need to be one-mana, so you trade at an even level (Dragons Rage Channeler and Ragavan, Nimble Pilferer), too large to be killed by Unholy Heat (Deaths Shadow and Murktide Regent) or generate immediate value upon being played (Solitude, Fury and Omnath, Locus of Creation)
The introduction of Shiny Mega Evolution ex cards creates a new rarity ceiling, the Mew Immersive Art is an instant grail card, and the competitive meta is being reshaped by a Metal archetype that's faster and harder-hitting than anything we've seen before
