

Q1: What positions on the memory gauge does "if you have 4 or less memory" refer to?
It refers to the positions at 4 and to the right of it on your side.
Lv.3 Palmon BT26-034 C Rookie | Data | Vegetation/Iliad/TS [Start of Your Main Phase] If you have 4 or less memory, this Digimon may digivolve into a Digimon card with the [Vegetation] or [TS] trait in the hand without paying the cost. --- [When Attacking] [Once Per Turn] You may suspend 1 of your opponent's Digimon.
Lv.3 Palmon BT26-034 C Rookie | Data | Vegetation/Iliad/TS [Digivolve] Lv.2 w/[TS] trait: Cost 0 [Start of Your Main Phase] If you have 4 or less memory, this Digimon may digivolve into a Digimon card with the [Vegetation] or [TS] trait in the hand without paying the cost. --- [When Attacking] [Once Per Turn] You may suspend 1 of your opponent's Digimon.
Lv.3 Palmon BT26-034 C rookie | Data | Vegetation/Iliad/TS [Digivolve] Lv.2 w/[TS] trait: Cost 0 [Start of Your Main Phase] If you have 4 or less memory, this Digimon may digivolve into a Digimon card with the [Vegetation] or [TS] trait in the hand without paying the cost. --- [When Attacking] [Once Per Turn] You may suspend 1 of your opponent's Digimon.
Lv.3 パルモン BT26-034 C 成長期 | データ種 | 植物型/イリアス/TS 【自分のメインフェイズ開始時】メモリーが4以下なら、このデジモンを手札の特徴「植物型」/「TS」を持つデジモンカードにコストを支払わず進化できる。 --- 【アタック時】[ターン1回]相手のデジモン1体をレストできる。