As the name implies, Starter Decks were designed as a jumping-on point for players new to the game, allowing them to pick up an instant collection of cards along with the rules
Some of them provide incidental value while others are worth building your entire strategy around
However throughout Magic there are many ways to tap a creature without attacking including convoke, making mana dorks with Nature's Embrace, bolster on Gleam of Authority, straight up green token generators in Presence of Gond, and one of the oldest, Samite Blessing
Soon, every card or pack that I acquired was assigned a specific stock number
No need to attack, just sac your creatures to Jarad, and bam
4 is a good average since most of the time you usually hold onto at least 2 supporters, but unlike the draw 4 supporters which the draw 4 is guaranteed this card has the possibility to draw 0 cards or even in some cases not be able to be played at all if your opponent doesn't have any cards in hand, just use iono and professor's research