Even though vanilla creatures arent the most interesting in the world, this card is eminently flavorful, and the rate of getting a combined 12 power and toughness for only four mana is still an extremely good rate over 15 years after this card released
Regice is best known for its crystalline appearance, reminiscent of ancient ice formations, and is said to have been created during the ice age, signifying its deep ties to the elemental lore of the Pokmon world
If you dont have a way to deal with that counter, you will simply lose
What Mono-Red lacks in card advantage, through no fault of its own, it also fails to make up for in subtlety
You can also attempt this deck with the likes of Exeggutor or Butterfree if you do not have Lilligant, but ultimately, Lilligant is the best mon to use alongside Venusaur ex right now