It's not possible to cause a creature to die during the end step in time to have the ability trigger
If you like the deck feel free to drop a +1, or even better sleeve it up and take it for a spin and let me know how you like it
Youll usually have ample mana to work with too, so whats 1 more when casting a tutor, killing a creature, or putting one of your own out onto the battlefield
This is an amazing 'enabler' card that works great within many psychic decks that don't have many other evolutionary cards, as Gardevoir is a Stage 2 Pokemon
You can and will get mana fucked with reasonable regularity, there are insane combos that once executed you cant do shit about, there are trick decks that will annoy you and if you are in a rush to get your collection up, you can as always spend your rent money in short order
Youre going to need a flood of tokens with the Tyranid deck and I think thats exactly the point