Good luck finding a reasonably priced SR Ho-Oh GX, and Ill see you again at the end of the month when Silvally and the Ultra Beasts (an excellent name for a band) come to town
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
though Serena might not quite have the mass appeal that certain other female characters have, the effect is nonetheless in play
-3 Crackling Drake -2 Flame-Blessed Bolt -2 Chart a Course -3 Izzet Charm -1 Treasure Cruise -2 Expressive Iteration -4 Island -4 Mountain -2 Sulfur Falls -4 Shivan Reef -4 Temple of Epiphany -2 Abrade -1 Invasive Surgery -2 Lava Coil -2 Sweltering Suns -2 Mystical Dispute -3 Narset, Parter of Veils +4 Ledger Shredder +2 Arclight Phoenix +2 Fiery Impulse +3 Spell Pierce +2 Spikefield Hazard +2 Galvanic Iteration +1 Pieces of the Puzzle +2 Temporal Trespass +2 Hall of Storm Giants +4 Riverglide Pathway +4 Spirebluff Canal +3 Steam Vents +2 Stormcarved Coast +1 Otawara, Soaring City +1 Chandra, Torch of Defiance +2 Aether Gust +2 Disdainful Stroke +2 Young Pyromancer +2 Brotherhoods End Total Upgrade cost ~$370 Gruul Stompy Gruul Stompy looks a bit different than the challenger deck, but had some of the same cards and a similar plan
This helps you see what creatures you're going to potentially be able to cast at each part of the game