Q1: I have 8 or more yellow Tamers in play, and use BT2-099 Glorious Burst. Can I activate this card's inherited effect?
No. BT2-099 Glorious Burst’s cost has been changed to 1, so using it isn’t considered to be using an Option card with a cost of 2 or more.
Q2: I have 1 card in my security stack. If I use BT7-100 Qualialise Blast, can I activate this card’s inherited effect?
Yes. When you use BT7-100 Qualialise Blast’s effect, it changes the cost paid to the number of cards in your security stack, but doesn't change the cost of the card itself. As such, the game considers you to have used an Option card with a cost of 5, allowing you to activate this card’s inherited effect.
Q3: I use an Option card with a cost of 2 or more by an effect that reads, “Use an Option card without paying its cost.” Can I activate this card’s inherited effect?
Yes. Effects that use Option cards without paying their costs are skipping the costs entirely, not changing them.
Lv.2 Viximon EX2-003 U In-Training | Lesser - --- Inherited: [Your Turn] [Once Per Turn] When you use an Option card with a cost of 2 or more, <Draw 1>. (Draw 1 card from your deck.)
Lv.2 Viximon EX2-003 U In-Training | Lesser - --- Inherited: [Your Turn] [Once Per Turn] When you use an Option card with a cost of 2 or more, <Draw 1>. (Draw 1 card from your deck.)
Lv.2 Viximon EX2-003 U in-training | Lesser --- Inherited: [Your Turn] [Once Per Turn] When you use an Option card with a cost 2 or more, <Draw 1>.
Lv.2 ポコモン EX2-003 U 幼年期 | レッサー型 --- Inherited: 【自分のターン】[ターンに1回]自分が使用コスト2以上のオプションカードを使用したとき、≪1ドロー≫(自分のデッキからカードを1枚引く)。