While this seemed good on paper, the key here is that they didnt Mega Evolve from a Venusaur or Blastoise: they Mega Evolved from Blastoise-EX and Venusaur-EX
This creature reads: Whenever an opponent casts a spell with mana value 3 or less, Scalding Viper deals 1 damage to that player. Basically, if youre against a deck that purposefully keeps their cards cheap, a single copy of this card could end them
(Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player discards a card.) Swampcycling ( , Discard this card: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle.) Unlock the potential of your card collection
Skip to main content SIGN IN Ultimate Masters: Fecundity Edition: Ultimate Masters Type: Enchantment Cast: Rarity: U Collector #: 165 Whenever a creature dies, that creature's controller may draw a card
(The card wouldn't work at all otherwise.) This is a very broadly-applicable rule, which applies to any card with an activated or triggered ability that references information about itself when it resolves
